National Fire Protection Association Report Kimberly Shea, Project Administrator Date: April 17, 2015 Subject: NEC First Draft TC FINAL Ballot Results (A2016) According to the final

National Fire Protection Association 1 Batterymarch Park, Quincy, MA 02169-7471 Phone: 617-770-3000 • Fax: 617-770-0700 • www.nfpa.org

M E M O R A N D U M

To: NEC Code-Making Panel 17

From: Kimberly Shea, Project Administrator

Date: April 17, 2015

Subject: NEC First Draft TC FINAL Ballot Results (A2016)

According to the final ballot results, all ballot items received the necessary affirmative votes to pass ballot.

13 Principal Members 9 Eligible to Vote on All Articles

4 Vote Limited 0 Members Ballot Not Returned 4 Members voted Affirmative with Comment on one or more Revision (Blewitt, Cook, Shell, Yasenchak) 7 Members voted Negative on one or more Revision (Blewitt, Cook, Jhonson, Querry, Schapp, Williams,

Yasenchak) 0 Members Abstained on one or more Revision The attached report shows the number of affirmative, negative, and abstaining votes as well as the explanation of the vote for each first revision.

There are two criteria necessary for each first revision to pass ballot: (1) simple majority and (2) affirmative 2/3 vote. The mock examples below show how the calculations are determined.

(1) Example for Simple Majority: Assuming there are 20 vote eligible committee members, 11 affirmative votes are required to pass ballot. (Sample calculation: 20 members eligible to vote ÷ 2 = 10 + 1 = 11)

(2) Example for Affirmative 2/3: Assuming there are 20 vote eligible committee members and 1 member did not

return their ballot and 2 members abstained, the number of affirmative votes required would be 12. (Sample calculation: 20 members eligble to vote – 1 not returned – 2 abstentions = 17 x 0.66 = 11.22 = 12 )

As always please feel free to contact me if you have any questions.

First Revision No. 4803-NFPA 70-2015 [ Global Input ]

Add "and labeled" after "listed" in the following sections

422.15(A)

422.50

426.54

680.23(A)(2)

680.24(A)(1)

680.42(A)

680.42(B)

680.43

680.43(D)

680.44(A)

680.62(A)(1)

Submitter Information Verification

Submitter Full Name: CMP 17

Organization: [ Not Specified ]

Street Address:

City:

State:

Zip:

Submittal Date: Mon Jan 12 13:17:39 EST 2015

Committee Statement

CommitteeStatement:

This revision clarifies certain equipment must be “listed and labeled” instead of just “listed.”Listing agencies do not consider a product to be Listed unless the Label has actually beenapplied.

ResponseMessage:

Public Input No. 931-NFPA 70-2014 [Section No. 680.42(A) [Excluding any Sub-Sections]]

Public Input No. 909-NFPA 70-2014 [Section No. 422.15(A)]

Public Input No. 910-NFPA 70-2014 [Section No. 422.50]


Public Input No. 929-NFPA 70-2014 [Section No. 680.23(A)(2)]


Public Input No. 932-NFPA 70-2014 [Section No. 680.42(B)]

Public Input No. 933-NFPA 70-2014 [Section No. 680.43 [Excluding any Sub-Sections]]

Public Input No. 934-NFPA 70-2014 [Section No. 680.43(D)]



Ballot Results

This item has passed ballot

National Fire Protection Association Report http://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPara...

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13 Eligible Voters

0 Not Returned

12 Affirmative All

0 Affirmative with Comments

1 Negative with Comments

0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hamilton, III, E. P.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.

Querry, Dennis Michael

Sandberg, Chester L.

Shell, Kenneth M.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.

Negative with Comment

Schapp, Ronald F.

A requirement that all listed equipment be labeled with the listing organization's mark of conformity conflicts withthe definition of Listed in Article 100, including the Informational Note saying," Use of the system employed by thelisting organization allows the authority having jurisdiction to identify a listed product." The definition is not only theNEC definition of Listed, it is an Official NFPA Definition, including the Informational Note (or an Appendix note inmany NFPA standards). it is not for CMP 17 to decide to override an official definition. In addition it is inappropriatefor the NEC Committee to dictate certification practices to listing organizations. By requiring that listed equipmentdisplay the listing organization's mark, CMP 17 would be dictating the business practices of the listingorganizations without a clear statement of need, against the advice contained in the Informational note to thedefinition.


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First Revision No. 4842-NFPA 70-2015 [ Detail ]

Change the title of 424.41 to

Ceiling Installation of Heating Cables on Dry Board, in Plaster, and on Concrete




Street Address:

City:

State:

Zip:

Submittal Date: Tue Jan 13 21:48:59 EST 2015

Committee Statement

Committee Statement: This revision clarifies that all of 424.41 applies to ceiling installations.

Response Message:


Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


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First Revision No. 4875-NFPA 70-2015 [ Section No. 422.2 ]

Vending Machine.

Any self-service device that dispenses products or merchandise without the necessity of replenishingthe device between each vending operation and is designed to require insertion of coin, paper currency,token, card, key, or receipt of payment by other means.




Street Address:

City:

State:

Zip:

Submittal Date: Thu Jan 15 15:12:14 EST 2015

Committee Statement

CommitteeStatement:

The revision to require all appliances to be listed eliminates the need for a definition ofvending machine.

Response Message:

Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.



1) The committee statement only states that the appliance would need to be listed. Should the statement also


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include the word labeled as well? 2) Requiring the appliance to be listed and removing the definition would requirea code user to fall back to the definition of appliance listed in article 100 which does not list vending machine aspart of the definition and give the impression that industrial machinery is excluded. The user would then fall backto the definition in Webster's dictionary for the definition of vending machine. The definition in Webster's dictionarystates: (a machine that you put money into in order to buy food, drinks, cigarettes, etc.)Not all vending machinesrequire money to be inserted to provide a service or product. it might be better to leave the definition in place orrevise the definition to better fit the requirements of article 422.


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First Revision No. 4802-NFPA 70-2015 [ New Section after 422.5 ]

422.6 Listing Required.

All appliances shall be listed and labeled.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

All appliances should be listed and labeled to classify the equipment and to ensureapplication of proper installation requirements.

ResponseMessage:

Public Input No. 3026-NFPA 70-2014 [New Section after 422.5]

Ballot Results


11 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Swim, Peter C.

Yasenchak, Randy J.


Schapp, Ronald F.

New 422.6 Requiring "listing" of all appliances is appropriate. It is not appropriate to require "labeling". Refer tonegative comment to FR 4803.


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Williams, Matt B.

Using a universal mandated of “listing” of all appliances will not solve the issues presented and will likely causemore confusion. In the complex world of utilization equipment, there are many different products under the term“appliance.” Art. 422 contains specific requirements for certain equipment but not for most types. We appreciatethe desire to have all appliances safety certified, but the voluntary system of safety certification of the US hasachieved virtually 100% compliance. The challenges of mandating this are many. The current definition of“appliance” in the NEC may work for the Code but this proposal would now require all Certification Organizations(CO) to comply with this definition for all products under specific standards. The premise of the proposal that thiswould bring greater clarity or uniformity is unfortunately not true. There are many problems with the insertion thisphrase. 1. The addition of this language could require that AHJ’s take on the role of determining if a piece ofutilization equipment is an “appliance” and if the appropriate standard has been used. The AHJ may not have thenecessary information on the internal technology of the product, its functions or the usage to make thisdetermination. 2. Not all Nationally Recognized Testing Labs (NRTL) CO’s will use the same determination of aproduct and thus products in between standards will be listed, but not to what the AHJ may agree. This could putthe AHJ in the awkward position of determining if the product has been properly “listed.” 3. To require “listing” of aproduct also requires under the definitions found in NFPA 70, that the product be put onto a “list.” This implies thatthis list would be used by an AHJ for purposes of determining if the product has been evaluated properly.However, each CO may not agree and the same products could be on different lists. 4. Many products do notcarry a description of the product type when obvious. Where products are new or innovative, requirements frommultiple product standards may be used. This proposal will not help AHJ’s determine compliance. 5. Many“appliances” function on low voltage systems either through an external power supply or battery charger.Frequently, only the conversion portion of the “appliance” is listed and not what some would consider is the“appliance.” The proposal would create a conflict between the Code and the listing requirements. These lowvoltage “appliances” will not appear on any list accessible to the AHJ. 6. Short runs of sample products may beused to gauge consumer interest and may not be certified at the time they are used for marketing purposes. Thiscode change will cause difficulty for companies trying to bring new products to the market quickly. 7. Marking,listing, and categories of products are governed by the certification rules of the CO, may not be in the safetystandards and may not agree with the specific designations within Art. 422. Between CO’s there is a great deal ofvariability with respect to when the product must be marked with its category or classification or even the term thatis used in the marking or category of a list. This proposal will not bring uniformity to the process. Applianceend-product safety is addressed by nearly 100 safety standards, including component standards, developed byconsensus stakeholder committees composed of knowledgeable individuals about that particular product andwhich rapidly change with technology. The solution to the issue raised by the maker of the proposal would be forthe Code to clearly define what constitutes each of the special installation requirements for appliances (such asdishwasher, refrigerator, vending machine, drinking fountain, etc.) that may be beyond the applicable safetystandards. The proposal as presented will not bring clarity or uniformity to the process of safety and will make thework of the NEC and the AHJ more difficult.


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422.5 Ground-Fault Circuit-Interrupter (GFCI) Protection for Personnel .

The device providing GFCI protection required in this article shall be readily accessible.

(A) General.

Appliances identified in 422.5(A)(1) through (7) rated 250 volts or less and 60 amperes or less, single-or 3-phase, shall be provided with GFCI protection for personnel. Multiple GFCI protective devices shallbe permitted but shall not be required.

(1) Automotive vacuum machines provided for public use

(2) Boat hoists

(3) Drinking water coolers

(4) Dwelling unit dishwashers

(5) High-pressure spray washing machines — cord-and-plug-connected

(6) Tire inflation machines provided for public use

(7) Vending machines

(B) Type.

The GFCI shall be readily accessible, listed and labeled, and located in one or more of the followinglocations:

(1) Within the branch circuit overcurrent device

(2) A device or outlet within the supply circuit

(3) An integral part of the attachment plug

(4) Within the supply cord not more than 300 mm (12 in.) from the attachment plug

(5) Factory installed within the appliance




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revision incorporates concepts to collect GFCI requirements from 210.8 and throughout Article422 related to personnel hazards from specific equipment (contact with equipment with excessiveleakage current) and provide those requirements in a single location. Those hazards could beassociated with abnormal conditions in equipment related to intentional or unintentional physicalabuse, harsh environment, or simply end of life. Collection of GFCI requirements will increase clarityand usability. GFCI protection for general purpose outlets related to locations and environmentalfactors, not specific equipment, remain grouped in 210.8. Review of UL 943, Standard for ground-faultcircuit-interrupters covers single and three phase protective devices that operate at several voltage


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levels all rated 250 volts or less. Based on the voltage limitation of the product standard, the 250 voltsor less was used in 422.5. It was determined the personnel hazards are related to abnormal conditionsfor the specific equipment considered and do not change at 250 volts or less nor do they changewhere the equipment is single or three phase. While UL 943 does not limit application to 60 amperesor less, that ampere rating appears to cover products that are commercially available. While previousGFCI requirements included a variation of protective device locations, it was determined the hazard isassociated with a person coming in contact with the equipment while grounded at the same time theequipment is in a condition that allows current to flow outside the intended path. It was determined thelocation of the GFCI protective device was not relevant to the safety of the person. Revisions permitthe protection to be provided by any protective device listed and labeled to UL 943. This revisionprovides owners, designers, and installers the ability to select the location most suitable for the ownerneeds and be able to select an option that allows for testing of the GFCI protective device. Whilecurrent NEC and product standards require GFCIs to be incorporated in plugs or cords provided withthe appliance, older equipment will not include that protection. It is also recognized that portable GFCIdevices are not currently available in 60 ampere three phase configurations. Where the applianceincludes GFCI protection revised text does not require additional protection but recognizes thatmultiple levels of protection are compatible and do not cause any safety or operational concerns.Revision also recognizes incorporation of GFCIs within products is an issue to be resolved within theproduct standard. Revision also changes “electric drinking fountain” to “drinking water cooler” basedon the term used in the applicable product standard.

ResponseMessage:



Public Input No. 3878-NFPA 70-2014 [Section No. 422.16(B)(2)]









Public Input No. 539-NFPA 70-2014 [Sections 422.51(A), 422.51(B)]






Public Input No. 1468-NFPA 70-2014 [New Article after 422]



Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All


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Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.



The new current text would require that the appliance itself would be required to be provided with the GFCIprotection. 1) This would allow the circuit to be installed into the area where the GFCI protection would be neededto not be GFCI protected. 2) Would it be better to give the option to allow the purchaser of the equipment to buythe equipment with GFCI protection or buy the equipment without GFCI protection and the installer of the circuitfor the appliance to install GFCI protection of the circuit. The current proposed text in "A" gives the implication thatthe appliance is to be provided with the GFCI protection. Suggested rewording: Appliances identified in422.5(A)(1) through (7) rated 250 volts or less and 60 amperes or less, single- or 3-phase,or the circuit providingpower for these appliances shall be provided with GFCI protection for personnel. Multiple GFCI protective devicesshall be permitted but shall not be required.


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422.14 Infrared Lamp Industrial Heating Appliances.

In industrial occupancies, infrared heating appliance lampholders shall be permitted to be operated inseries on circuits of over 150 volts to ground, provided the voltage rating of the lampholders is not lessthan the circuit voltage.

Each section, panel, or strip carrying a number of infrared lampholders (including the internal wiring ofsuch section, panel, or strip) shall be considered an appliance. The terminal connection block of eachsuch assembly shall be considered an individual outlet.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Section 422.14 has been deleted as fixed industrial process heating equipment is nowaddressed in a new Article 425. See FR 4841.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.


11 of 141 4/17/2015 2:48 PM

Yasenchak, Randy J.

Affirmative with Comment

Blewitt, Thomas V.

This yes vote is contingent on the requirement being retained but relocated in new Article 425.


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First Revision No. 4876-NFPA 70-2015 [ Section No. 422.16(B)(1) ]

(1) Electrically Operated In-Sink Waste Disposers.

Electrically operated in-sink waste disposers shall be permitted to be cord-and-plug-connected with aflexible cord identified as suitable in the installation instructions of the appliance manufacturer where all ofthe following conditions are met:

(1) The flexible cord shall be terminated with a grounding-type attachment plug.

Exception: A listed in-sink waste disposer distinctly marked to identify it as protected by a system ofdouble insulation, or its equivalent, shall not be required to be terminated with a grounding-typeattachment plug.

(2) The length of the cord shall not be less than 450 mm (18 in.) and not over 900 mm (36 in.).

(3) Receptacles shall be located to avoid protect against physical damage to the flexible cord.

(4) The receptacle shall be accessible.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revision is part of the panel's intent to use consistent language across the article."Protects against" more accurately describes the protection.

ResponseMessage:

Ballot Results


11 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



13 of 141 4/17/2015 2:48 PM

Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


Blewitt, Thomas V.

In the context of a sink waste disposer, it is unclear in the exception what the equivalent to double insulation is.Since these appliances may either be protected by grounding or double insulation, the “or its equivalent”statement in the requirement could be deleted without affecting product design and to also avoid confusion.



The current proposed text implies that the receptacle will protect the flexible cord: Current text: Receptacles shallbe located to protect against physical damage to the flexible cord. Suggested rewording: Receptacles shall belocated such that the associated flexible cord will be protected from physical damage.


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(2) Built-in Dishwashers and Trash Compactors.

Built-in dishwashers and trash compactors shall be permitted to be cord-and-plug-connected with aflexible cord identified as suitable for the purpose in the installation instructions of the appliancemanufacturer where all of the following conditions are met:

(1) The flexible cord shall be terminated with a grounding-type attachment plug.

Exception: A listed dishwasher or trash compactor distinctly marked to identify it as protected by asystem of double insulation, or its equivalent, shall not be required to be terminated with agrounding-type attachment plug.

(2) The For a trash compactor, the length of the cord shall be 0.9 m to 1.2 m (3 ft to 4 ft) measured fromthe face of the attachment plug to the plane of the rear of the appliance.

(3) For a built-in dishwasher, the length of the cord shall be 0.9 m to 2.0 m (3 ft to 6.5 ft) measured fromthe face of the attachment plug to the plane of the rear of the appliance.

(4) Receptacles shall be located to avoid protect against physical damage to the flexible cord.

(5) The receptacle for a trash compactor shall be located in the space occupied by the appliance oradjacent thereto.

(6) The receptacle for a built-in dishwasher shall be located in the space adjacent to the spaceoccupied by the dishwasher.

(7) The receptacle shall be accessible.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Receptacle location for dishwashers was changed to only permit location in adjacent space tocorrelate with UL 749. The revision for a longer cord on a dishwasher is intended to facilitate thelocation of the receptacle in the adjacent space. "Protects against" more accurately describes theprotection.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

9 Affirmative All


15 of 141 4/17/2015 2:48 PM



0 Abstention

Affirmative All

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


Blewitt, Thomas V.

In the context of dishwashers and trash compactors, it is unclear in the exception what the equivalent to doubleinsulation is. Since these appliances may either be protected by grounding or double insulation, the “or itsequivalent” statement in the requirement could be deleted without affecting product design and to also avoidconfusion.



1) Both items 5 and 6 allow the receptacle to be located in the space adjacent to the appliance. This would oftenlead to the cord passing through a divider or wall. This would be in conflict with Article 400.8 which does not allowflexible cord to be run through walls. The NEC does not give a definition for walls therefore the definition inWebster's dictionary would apply. Wall - a material layer enclosing space 2)Suggested wording for items 5 & 6:5)Receptacles for trash compactors shall be located such that the associated flexible cord will be protected fromphysical damage. 6)Receptacles for dishwashers shall be located such that the associated flexible cord will beprotected from physical damage.


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(4) Range Hoods.

Range hoods shall be permitted to be cord-and-plug-connected with a flexible cord identified as suitablefor use on range hoods in the installation instructions of the appliance manufacturer, where all of thefollowing conditions are met:

(1) The flexible cord is terminated with a grounding-type attachment plug.

Exception: A listed range hood distinctly marked to identify it as protected by a system of doubleinsulation, or its equivalent, shall not be required to be terminated with a grounding-typeattachment plug.

(2) The length of the cord is not less than 450 mm (18 in.) and not over 900 mm (36 in.) 1.2 m (4 ft) .

(3) Receptacles are located to avoid protect against physical damage to the flexible cord.

(4) The receptacle is accessible.

(5) The receptacle is supplied by an individual branch circuit.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revision extends the permissible cord length to 4 feet to accommodate larger products thatare currently on the market. This additional length does not decrease the safety of the installation.The language of item (3) was revised to use more enforceable language.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Cook, Donald R.


17 of 141 4/17/2015 2:48 PM

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


Blewitt, Thomas V.

In the context of a rangehood, it is unclear in the exception what the equivalent to double insulation is. Sincethese appliances may either be protected by grounding or double insulation, the “or its equivalent” statement inthe requirement could be deleted without affecting product design and to also avoid confusion.



The current proposed text implies that the receptacle will protect the flexible cord: Current text: (3)Receptaclesare located to protect against physical damage to the flexible cord. Suggested rewording: 3)Receptacles for rangehoods shall be located such that the associated flexible cord will be protected from physical damage.


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422.21 Covering of Combustible Material at Outlet Boxes.

Any combustible ceiling finish that is exposed between the edge of a ceiling-suspended (paddle) fan

canopy or pan and an outlet box having and that has a surface area of 1160 mm 2 (180 in. 2 ) or moreshall be covered with noncombustible material.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This aligns ceiling fan requirement with luminaire canopy / pan requirement. Requirements forceiling fans should be specified in the appliance article (422).

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.



19 of 141 4/17/2015 2:48 PM


The current text implies that the canopy, pan or outlet box having a surface area of 1160 mm2 (180 in.2) or morewould be required to be covered with a noncombustible material. Current proposed text: 422.21 Covering ofCombustible Material at Outlet Boxes. Any combustible ceiling finish that is exposed between the edge of aceiling-suspended (paddle) fan canopy or pan and an outlet box and that has a surface area of 1160 mm2 (180in.2) or more shall be covered with noncombustible material. Suggested rewording: Any combustible ceiling finishhaving a surface area of 1160 mm2 (180 in.2) or more between the between the edge of a ceiling-suspended(paddle) fan canopy or pan and an outlet box shall be covered with a noncombustible material.


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422.23 Tire Inflation and Automotive Vacuum Machines.

Tire inflation machines and automotive vacuum machines provided for public use shall be protected by aground-fault circuit interrupter.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revision deletes a clause made redundant by relocation (and revision) to 422.5 in FR1.

Response Message:

Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


21 of 141 4/17/2015 2:48 PM


422.30 General.

A means shall be provided to simultaneously disconnect each appliance from all ungrounded conductorsin accordance with the following sections of Part III. If an appliance is supplied by more than one branch-circuit branch circuit or feeder, these disconnecting means shall be grouped and identified as being themultiple disconnecting means for the appliance. Each disconnecting means shall simultaneouslydisconnect all ungrounded conductors that it controls .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:


Response Message:


Ballot Results


11 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.



22 of 141 4/17/2015 2:48 PM

Cook, Donald R.

While IAEI supports action in FR 4811, the committee statement does not correlate with the action. This revisioncorrelates with several of FR's related to appliances with more than one supply. This revision is not related to422.5 or FR 1.



The current proposed wording is confusing: Current proposed text: 422.30 General. A means shall be provided tosimultaneously disconnect each appliance from all ungrounded conductors in accordance with the followingsections of Part III. If an appliance is supplied by more than one branch circuit or feeder, these disconnectingmeans shall be grouped and identified as being the multiple disconnecting means for the appliance. Eachdisconnecting means shall simultaneously disconnect all ungrounded conductors that it controls. Suggestedrewording:422.30 General. A means shall be provided to simultaneously disconnect each appliance from allungrounded conductors in accordance with the following sections of Part III. If an appliance is supplied by morethan one branch circuit or feeder, these disconnecting means shall be grouped. Each disconnect shall beidentified as one of multiple disconnects for the appliance. Each disconnecting means shall simultaneouslydisconnect all ungrounded conductors that it controls.


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First Revision No. 4812-NFPA 70-2015 [ Section No. 422.31(A) ]

(A) Rated at Not over 300 Volt-Amperes or 1⁄8 Horsepower.

For permanently connected appliances rated at not over 300 volt-amperes or 1⁄8 hp, the branch-circuitovercurrent device shall be permitted to serve as the disconnecting means where the switch or circuitbreaker is within sight from the appliance or is lockable in accordance with 110.25 .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The disconnecting means needs to be within sight from the appliance or be lockable. The paneledited requirement for consistency with 422.31(B) as the potential risk of electric shock would bethe same for both circumstances.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


24 of 141 4/17/2015 2:48 PM



The NEC does not define permanently connect appliances however article 220.53 does somewhat defineappliance fastened in place. Suggested rewording: (A) Appliances fastened in place rated at not over 300Volt-Amperes or motor operated appliances not over 1?8 Horsepower. For permanently connected appliancesfastened in place rated at not over 300 volt-amperes or motor operated appliances not over 1?8 hp, the branch-circuit overcurrent device shall be permitted to serve as the disconnecting means where the switch or circuitbreaker is within sight from the appliance or is lockable in accordance with 110.25


25 of 141 4/17/2015 2:48 PM

First Revision No. 4813-NFPA 70-2015 [ Section No. 422.31(C) ]

(C) Motor-Operated Appliances Rated over 1⁄8 Horsepower.

The disconnecting means shall comply with 430.109 and 430.110. For permanently connected motor-operated appliances with motors rated over 1⁄8 hp, the disconnecting means shall meet 422.31(C)(1) or(2) be within sight from the appliance or be capable of being locked in the open position in compliancewith 110.25 .

(0) The branch-circuit switch or circuit breaker shall be permitted to serve as the disconnecting meanswhere the switch or circuit breaker is within sight from the appliance.

(0) The disconnecting means shall be installed within sight of the appliance.

Exception: If an appliance of more than 1⁄8 hp is provided with a unit switch that complies with 422.34(A),(B), (C), or (D), the switch or circuit breaker serving as the other disconnecting means shall be permittedto be out of sight from the appliance.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The panel clarified the requirement by stating a general requirement followed by theexception.

Response Message:

Public Input No. 3696-NFPA 70-2014 [Section No. 422.31(C)]

Ballot Results


11 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.




26 of 141 4/17/2015 2:48 PM

Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.


Cook, Donald R.

Article 430 permits a conditional remote disconnect for small motors (1/8 HP and smaller), but not for lagermotors. This revision would allow a remote disconnect (not within sight) from an appliance with any size motor.The change is a reduction in safety with no substantiation. Panel statement indicates this action has clarified therequirement when in fact the revision is a major change without substantiation. IAEI does not support that action.

Yasenchak, Randy J.

The proposed language is a clear reduction in safety. The first level subdivisions was added in the 2011 edition ofthe NEC to add clarity to the requirements of the section. This addition was intended to clarify that for motors over1/8 HP, the disconnecting means are more restrictive. The requirements of the old 422.32 were merged into422.31c. Since this section references an appliance HP rating, a motor driven appliance is implied. In comecommercial kitchens appliances could be rated 5 HP or higher.


27 of 141 4/17/2015 2:48 PM

First Revision No. 4814-NFPA 70-2015 [ Section No. 422.33(B) ]

(B) Connection at the Rear Base of a Range.

For cord-and-plug-connected household electric ranges, an attachment plug and receptacle connection atthe rear base of a range, if it is accessible from the front by removal of a drawer, shall be considered asmeeting shall meet the intent of 422.33(A).




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: Editorial change to improve clarity.

Response Message:

Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


28 of 141 4/17/2015 2:48 PM


422.49 High-Pressure Spray Washers.

Cord-and plug-connected high-pressure spray washing machines as specified in 422.49(1) or (2) shallbe provided with factory-installed ground-fault circuit-interrupter protection for personnel that is anintegral part of the attachment plug or that is located in the supply cord within 300 mm (12 in.) of theattachment plug.

(0) All single-phase equipment rated 250 volts or less

(0) All 3-phase equipment rated 208Y/120 volts and 60 amperes or less




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:


Response Message:

Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.


29 of 141 4/17/2015 2:48 PM

Williams, Matt B.

Yasenchak, Randy J.


30 of 141 4/17/2015 2:48 PM


422.51 Vending Machines.

(A) Cord-and Plug-Connected.

Cord-and plug-connected vending machines manufactured or remanufactured on or after January 1,2005, shall include a ground-fault circuit interrupter as an integral part of the attachment plug or belocated within 300 mm (12 in.) of the attachment plug. Older vending machines manufactured orremanufactured prior to January 1, 2005, shall be connected to a GFCI-protected outlet.

(B) Other Than Cord-and Plug-Connected.

Vending machines not utilizing a cord and plug connection shall be connected to a ground-fault circuit-interrupter protected circuit.

Informational Note: For further information, see ANSI/UL 541-2010, Standard for RefrigeratedVending Machines , or ANSI/UL 751-2010, Standard for Vending Machines .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:


Response Message:

Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.


31 of 141 4/17/2015 2:48 PM

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


32 of 141 4/17/2015 2:48 PM


422.52 Electric Drinking Fountains.

Electric drinking fountains shall be protected with ground-fault circuit-interrupter protection.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revision deletes this clause made redundant by relocation (and revision) to 422.5 inFR 1.

Response Message:

Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


33 of 141 4/17/2015 2:48 PM


(A) Branch-Circuit Requirements.

Individual branch circuits shall be permitted to supply any volt-ampere or wattage rating of fixed electricspace-heating equipment for which they are rated.

Branch circuits supplying two or more outlets for fixed electric space-heating equipment shall be rated 15,20, 25, or not over 30 amperes. In other than a dwelling unit, fixed infrared heating equipment shall bepermitted to be supplied from branch circuits rated not over 50 amperes.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The revision enables future branch circuit sizes up to 30 amps that may be permitted in210.3.

Response Message:


Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.


34 of 141 4/17/2015 2:48 PM

Yasenchak, Randy J.


35 of 141 4/17/2015 2:48 PM


424.9 General.

All fixed electric space-heating equipment shall be installed in an approved manner.

Permanently installed electric baseboard heaters equipped with factory-installed receptacle outlets, oroutlets provided as a separate listed assembly, shall be permitted in lieu of a receptacle outlet(s) that isrequired by 210.50(B). Such receptacle outlets shall not be connected to the heater circuits.

Informational Note: Listed baseboard heaters include instructions that may not permit theirinstallation below receptacle outlets.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Approval of all conductors and equipment is required by NEC 110.2. Repeating that requirementin the first sentence of 424.9 adds nothing to the NEC. The first sentence has been deleted.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.


36 of 141 4/17/2015 2:48 PM

Williams, Matt B.

Yasenchak, Randy J.


37 of 141 4/17/2015 2:48 PM

First Revision No. 4822-NFPA 70-2015 [ Section No. 424.19 [Excluding any

Sub-Sections] ]

Means shall be provided to simultaneously disconnect the heater, motor controller(s), and supplementaryovercurrent protective device(s) of all fixed electric space-heating equipment from all ungroundedconductors. Where heating equipment is supplied by more than one source, feeder, or branch circuit, thedisconnecting means shall be grouped and marked identified as having multiple disconnecting means.Each disconnecting means shall simultaneously disconnect all ungrounded conductors that it controls .The disconnecting means specified in 424.19(A) and (B) shall have an ampere rating not less than 125percent of the total load of the motors and the heaters and shall be lockable in accordance with 110.25.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: The panel change the text to provide identification for multiple disconnecting means.

Response Message:



Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


38 of 141 4/17/2015 2:48 PM



Current proposed text: Means shall be provided to simultaneously disconnect the heater, motor controller(s), andsupplementary overcurrent protective device(s) of all fixed electric space-heating equipment from all ungroundedconductors. Where heating equipment is supplied by more than one source, feeder, or branch circuit, thedisconnecting means shall be grouped and identified as having multiple disconnecting means. Each disconnectingmeans shall simultaneously disconnect all ungrounded conductors that it controls. The disconnecting meansspecified in 424.19(A) and (B) shall have an ampere rating not less than 125 percent of the total load of themotors and the heaters and shall be lockable in accordance with 110.25. Suggested rewording: Means shall beprovided to simultaneously disconnect the heater, motor controller(s), and supplementary overcurrent protectivedevice(s) of all fixed electric space-heating equipment from all ungrounded conductors. Where heating equipmentis supplied by more than one source, feeder, or branch circuit, the disconnecting means shall be grouped. Eachdisconnect shall be identified as on of the multiple disconnects for the equipment. Each disconnecting means shallsimultaneously disconnect all ungrounded conductors that it controls. The disconnecting means specified in424.19(A) and (B) shall have an ampere rating not less than 125 percent of the total load of the motors and theheaters and shall be lockable in accordance with 110.25.


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424.34 Heating Cable Construction.

Heating cables shall be furnished complete with factory Factory -assembled nonheating leads of heatingcables, if any, shall be at least 2.1 m (7 ft) in length.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The FR allows for newer technologies and retains the minimum non-heating lead length forthose products where necessary.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


40 of 141 4/17/2015 2:48 PM


424.35 Marking of Heating Cables.

Each unit shall be marked with the identifying name or identification symbol, catalog number, and ratingsin volts and watts or in volts and amperes.

Each unit length of heating cable shall have a permanent legible marking on each nonheating leadlocated within 75 mm (3 in.) of the terminal end. The lead wire shall have the following color identificationto indicate the circuit voltage on which it is to be used:

(0) 120 volt, nominal — yellow

(0) 208 volt, nominal — blue

(0) 240 volt, nominal — red

(0) 277 volt, nominal — brown

(0) 480 volt, nominal — orange




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

For clarity, the requirement for space heating cable marking has been maintained. The colorcoding of the leads is redundant information because the required nameplate label alreadyprovides the electrical rating information.

ResponseMessage:



Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.


41 of 141 4/17/2015 2:48 PM

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


42 of 141 4/17/2015 2:48 PM


424.36 Clearances of Wiring in Ceilings.

Wiring located above heated ceilings shall be spaced not less than 50 mm (2 in.) above the heated ceilingand shall be considered as operating at an ambient temperature of 50°C (122°F) . The ampacity ofconductors shall be calculated on the basis of an assumed ambient temperature of 50°C (122°F),applying the correction factors shown in the 0–2000 volt ampacity tables of Article 310. If this wiring islocated above thermal insulation having a minimum thickness of 50 mm (2 in.), the wiring shall not requirecorrection for temperature.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: This section has been revised for clarity.

Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.



Current proposed text: 424.36 Clearances of Wiring in Ceilings. Wiring located above heated ceilings shall be


43 of 141 4/17/2015 2:48 PM

spaced not less than 50 mm (2 in.) above the heated ceiling. The ampacity of conductors shall be calculated onthe basis of an assumed ambient temperature of 50°C (122°F), applying the correction factors shown in the0–2000 volt ampacity tables of Article 310. If this wiring is located above thermal insulation having a minimumthickness of 50 mm (2 in.), the wiring shall not require correction for temperature. Suggested rewording: 424.36Clearances of Wiring in Ceilings. Wiring located above heated ceilings shall be spaced not less than 50 mm (2 in.)above the heated ceiling. The ampacity of conductors shall be calculated on the basis of an assumed ambienttemperature of 50°C (122°F),when applying the correction factors shown in the 0–2000 volt ampacity tables ofArticle 310. If this wiring is located above thermal insulation having a minimum thickness of 50 mm (2 in.), thewiring shall not require correction for temperature.


44 of 141 4/17/2015 2:48 PM


(A) Shall Not Extend Extending Beyond the Room or Area.

Heating cables shall not be permitted to extend beyond the room or area in which they originate.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Advances in technology, product designs, and product standards make it unnecessary to restrictheating cables to the room in which they originate, particularly for floor warming applications. Whenthere is a path from one room to another, such as a water closet to a vanity area in a bathroom, thefloor can be warmed with one heating cable circuit without creating safety concerns if themanufacturer’s installation instructions and other code sections are followed.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


45 of 141 4/17/2015 2:48 PM



Current proposed text: (A) Extending Beyond the Room or Area. Heating cables shall be permitted to extendbeyond the room or area in which they originate. Suggested rewording: (A) Extending Beyond the Room or Area.Heating cables shall be permitted to extend beyond the room or area in which they originate provided that therooms or areas are functionally associated and that the control for the heating cables is also functionallyassociated.


46 of 141 4/17/2015 2:48 PM


(B) Uses Prohibited Not Permitted .

Heating cables shall not be installed in the following as follows :

(1) In closets, other than as noted in 424.38(C)

(2) Over the top of walls where the wall intersects the ceiling

(3) Over partitions that extend to the ceiling, unless they are isolated single runs of embedded cable

(4) Under or through walls

(5) Over cabinets whose clearance from the ceiling is less than the minimum horizontal dimension of thecabinet to the nearest cabinet edge that is open to the room or area

(6) In tub and shower walls

(7) Under cabinets or similar built-ins having no clearance to the floor




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

As a result of the disposition of FR 4826, installation of floor heating cables will be permitted toextend beyond a room area. The revision to 424.38(B) addresses sources of thermal blockage tobe avoided in such installations. In addition, the intent of “over walls” for ceiling heating cableinstallation was clarified to be applicable where the wall intersects the ceiling.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


47 of 141 4/17/2015 2:48 PM

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.



Current proposed text for item 7: (7)Under cabinets or similar built-ins having no clearance to the floor Suggestedrewording: (7)Under cabinets or similar built-in furniture having no clearance to the floor


48 of 141 4/17/2015 2:48 PM


424.39 Clearance from Other Objects and Openings.

Heating elements of cables installed in ceilings shall be separated at least 200 mm (8 in.) from the edgeof outlet boxes and junction boxes that are to be used for mounting surface luminaires. A clearance of notless than 50 mm (2 in.) shall be provided from recessed luminaires and their trims, ventilating openings,and other such openings in room surfaces. No heating cable shall be covered by any surface-mountedequipment.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Section 424.39 references boxes used for mounting luminaries, therefore is intended toward ceilingheating cables. Section 424.39 is also part of the Clauses in 424.34 through 424.45 which areintended to apply to ceilings. The proposed revision to 424.39 clarifies this for this clause. If a similarrequirement is needed to address floor or wall installations, when permitted, this is better addressedin those respective sections.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.


49 of 141 4/17/2015 2:48 PM

Williams, Matt B.

Yasenchak, Randy J.


Blewitt, Thomas V.

As amended, the requirement no longer distinguishes between the heating and non-heating conductors ofheating cables. The non-heating conductors are unnecessarily being required to be separated 8 in. from surfaceluminaire outlet and junction boxes and 2 in from recessed luminaires, their trim and ventilating openings. Suchconductors are arguably no different from other current carrying conductors that are not similarly restricted in theirlocation.


The end of the second sentence refers to "ventilating openings, and other such openings in room surfaces" Whatventilating openings is this referring to? Ventilating openings of the fixture or the ceiling? What other suchopenings in room surfaces is this referring to? Openings in a fixture? Openings in the ceiling? openings in a wall?


50 of 141 4/17/2015 2:48 PM


424.40 Splices.

Embedded cables shall be spliced only where necessary and only by approved means, and in no caseshall the The length of the heating cable be altered shall only be altered using splices identified in themanufacturer’s instructions .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The revised text provides clarification of the current requirement and recognizes that productsare available and listed for altering heating cable length.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


51 of 141 4/17/2015 2:48 PM


(B) Adjacent Runs.

Adjacent runs of cable not exceeding 9 watts/m (2 3⁄4 watts/ft) shall not be installed less than 38 mm (1 1⁄2in.) on centers heating cable shall be installed in accordance with the manufacturer's instructions .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The revision eliminates confusing text and prescriptive installation criteria that do not take intoaccount the heating cable design. The intended installation criteria are required by the productsafety standard to be specified in the manufacturer’s instructions for the heating cable. Theseinstructions are addressed as a part of the heating cable listing and labeling (424.6).

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


52 of 141 4/17/2015 2:48 PM


(C) Surfaces to Be Applied.

Heating cables shall be applied only to gypsum board, plaster lath, or other fire-resistant material. Withmetal lath or other electrically conductive surfaces, a coat of plaster or other means employed inaccordance with the heating cable manufacturer’s instructions shall be applied to completely separate themetal lath or conductive surface from the cable.

Informational Note: See also 424.41(F) .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The revision recognizes that there may be other nonconductive means than a coat ofplaster.

Response Message:


Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


53 of 141 4/17/2015 2:48 PM



Current proposed text: Heating cables shall be applied only to gypsum board, plaster lath, or other fire-resistantmaterial. With metal lath or other electrically conductive surfaces, a coat of plaster or other means employed inaccordance with the heating cable manufacturer’s instructions shall be applied to completely separate the metallath or conductive surface from the cable. Suggested rewording: Heating cables shall be applied only to gypsumboard, plaster lath, or other fire-resistant material. When metal lath or other electrically conductive surfaces areemployed, a coat of plaster or other means employed in accordance with the heating cable manufacturer’sinstructions shall be applied to completely separate the metal lath or conductive surface from the cable.


54 of 141 4/17/2015 2:48 PM


424.45 Installation of Cables Under Floor Coverings.

(A) Identification.

Heating cables for installation under floor covering shall be identified as suitable for installation underfloor covering.

(B) Expansion Joints.

Heating cables shall not be installed where they bridge expansion joints unless provided with expansionand contraction fittings applicable to the manufacture of the cable.

(C) Connection to Conductors.

Heating cables shall be connected to branch-circuit and supply wiring by wiring methods described inthe installation instructions or as recognized in Chapter 3 .

(D) Anchoring.

Heating cables shall be positioned or secured in place under the floor covering, per the manufacturer’sinstructions.

(E) Ground-Fault Circuit-Interrupter Protection.

Ground-fault circuit-interrupter protection for personnel shall be provided.

(F) Grounding Braid or Sheath.

Grounding means, such as copper braid, metal sheath, or other approved means, shall be provided aspart of the heated length.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: This revision recognizes a product not currently included in Part V.

Response Message:


Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All


55 of 141 4/17/2015 2:48 PM

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


56 of 141 4/17/2015 2:48 PM


424.44 Installation of Cables in Concrete or Poured Masonry Floors.

(A) Watts per Linear Meter (Foot).

Constant wattage heating cables shall not exceed 54 watts per linear meter (16 1 ⁄2 watts per linearfoot) of cable.

(A) Spacing Between Adjacent Runs.

The spacing between adjacent Adjacent runs of heating cable shall not be less than 25 mm (1 in.) oncenters be installed in accordance with the manufacturer's instructions .

(B) Secured in Place.

Cables shall be secured in place by nonmetallic frames or spreaders or other approved means while theconcrete or other finish is applied.

Cables shall not be installed where they bridge expansion joints unless protected from expansion andcontraction.

(C) Spacing Between Heating Cable and Metal Embedded in the Floor.

Spacing shall be maintained between the heating cable and metal embedded in the floor, unless thecable is a grounded metal-clad cable.

(C) Leads Protected.

Leads shall be protected where they leave the floor by rigid metal conduit, intermediate metal conduit,rigid nonmetallic conduit, electrical metallic tubing, or by other approved means.

(D) Bushings or Approved Fittings.

Bushings or approved fittings shall be used where the leads emerge within the floor slab.

(E) Ground-Fault Circuit-Interrupter Protection.

Ground-fault circuit-interrupter protection for personnel shall be provided for cables installed in electricallyheated floors of bathrooms, and kitchens, and in hydromassage bathtub locations.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The revision eliminates prescriptive installation criteria that do not take into account the heatingcable design. The intended installation criteria are required by the product safety standard to bespecified in the manufacturer’s instructions for the heating cable. These instructions are addressedas a part of the heating cable listing and labeling (424.6).

Item (D) has been deleted because cable is required to be listed which requires a groundingcomponent (braid or sheath) over the heated section of the cable. There were no such standardswhen this requirement was first introduced into the code.



Public Input No. 312-NFPA 70-2014 [Global Input]

Ballot Results


57 of 141 4/17/2015 2:48 PM


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


Cook, Donald R.

IAEI generally supports action in FR 4833, but new item ( C ) indicates leads shall be protected by one of severalprescriptive wiring methods or other approved means. The requirement provides no basis for that "otherapproved" means. Item (D) requires bushings or other approved fittings to be provided where leads emerge withinthe floor slab. The requirement provides no basis for that "approved fitting". An NEC requirement should notexpect or permit approval an with no basis for the AHJ to provide that approval. Text should provide clarificationfor existing phrase "emerge within the floor slab" in item (D).


58 of 141 4/17/2015 2:48 PM


424.47 Label Provided by Manufacturer.

The manufacturers of electric space-heating cables shall provide marking labels that indicate that thespace-heating installation incorporates electric space-heating cables and instructions that the labelsshall be affixed to the panelboards to identify which branch circuits supply the circuits to those space-heating installations. If the electric space-heating cable installations are visible and distinguishable afterinstallation, the labels shall not be required to be provided and affixed to the panelboards.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The addition of this section correlates the requirements for the marking of heating panelsand panel sets in 424.92(D)

ResponseMessage:

Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.



59 of 141 4/17/2015 2:48 PM

Blewitt, Thomas V.

The requirement has a misspelling (“manufactuerers”) and singular vs plural inconsistencies that are editorial innature but also can lead to confusion. That is, the requirement states “labels” in three places creating the strongimplication that multiple labels must be provided by the manufacturer. Depending upon the heating cable productin question, a single panelboard label could suffice.


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(B) Limited Access.

Where the enclosure is located in a space above a ceiling, all of the following shall apply:

(1) The enclosure shall be accessible through a lay-in type ceiling or an access panel(s).

(2) The width of the working space shall be the width of the enclosure or a minimum of 762 mm (30 in.),whichever is greater.

(3) All doors or hinged panels shall open to at least 90 degrees.

(4) The space in front of the enclosure shall comply with the depth requirements of Table 110.26(A)(1) .

a. A horizontal ceiling T-bar shall be permitted in this space.

b. The work space shall be otherwise unobstructed to the floor

Informational Note: For additional installation information, see NFPA 90A-2012 2015 , Standard forthe Installation of Air-Conditioning and Ventilating Systems, and NFPA 90B-2012 2015 , Standardfor the Installation of Warm Air Heating and Air-Conditioning Systems.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The allowance for a t-bar, which is only practical, makes the secure ladder positioning even moreimportant in terms of effective access and dexterity for work within the enclosure. If CMP 1 acceptthe PI to include this workspace provision, CMP 17 recommends the inclusion of this revision.

ResponseMessage:

Public Input No. 4032-NFPA 70-2014 [Section No. 424.66(A)(B)]

Ballot Results


11 Eligible Voters

0 Not Returned

8 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.


61 of 141 4/17/2015 2:48 PM

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.


Cook, Donald R.

IAEI supports PI to delete this requirement in Article 424 and include the provision for limited access workspace,with text included in FR 4840, to NEC 110.26.

Yasenchak, Randy J.

We support relocation of 424.66b into 110.26. This relocation helps address equipment that is currently installedin spaces where the prescribed workspace in 110.26 is not provided. Acceptance of this deletion and relocationwill improve safety for electrical workers, and provide enforceable language for those who enforce requirements.



Item 4(B) would prohibit the occupant of the building from installing items such as tables or desk from beinginstalled in the space beneath the ceiling. Current proposed text: b.The work space shall be otherwiseunobstructed to the floor Suggested rewording: b.The work space shall be otherwise unobstructed to the floor bypermanently installed fixtures such as cabinets, walls or partitions.


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424.70 Scope.

The provisions in Part VII of this article shall apply to boilers employing resistance-type heating elements.Electrode-type boilers shall not be considered as employing resistance-type heating elements. See PartVIII of this article for electrode-type boilers .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revision clarifies that electrode-type boilers are covered by their own Part VIII and notPart VII.

Response Message:

Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


63 of 141 4/17/2015 2:48 PM


424.94 Clearances of Wiring in Ceilings.

Wiring located above heated ceilings shall be spaced not less than 50 mm (2 in.) above the heated ceilingand shall be considered as operating at an ambient of 50°C (122°F) . The ampacity shall be calculated onthe basis of an assumed ambient temperature of 50°C (122°F), applying the correction factors given inthe 0–2000 volt ampacity tables of Article 310. If this wiring is located above thermal insulations having aminimum thickness of 50 mm (2 in.), the wiring shall not require correction for temperature.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: This section revised for clarity.

Response Message:

Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.




64 of 141 4/17/2015 2:48 PM

Current proposed text:424.94 Clearances of Wiring in Ceilings. Wiring located above heated ceilings shall bespaced not less than 50 mm (2 in.) above the heated ceiling. The ampacity shall be calculated on the basis of anassumed ambient temperature of 50°C (122°F), applying the correction factors given in the 0–2000 volt ampacitytables of Article 310. If this wiring is located above thermal insulations having a minimum thickness of 50 mm (2in.), the wiring shall not require correction for temperature. Suggested rewording: 424.94 Clearances of Wiring inCeilings. Wiring located above heated ceilings shall be spaced not less than 50 mm (2 in.) above the heatedceiling. The ampacity shall be calculated on the basis of an assumed ambient temperature of 50°C (122°F), whenapplying the correction factors given in the 0–2000 volt ampacity tables of Article 310. If this wiring is locatedabove thermal insulations having a minimum thickness of 50 mm (2 in.), the wiring shall not require ampacitycorrection for temperature.


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(B) Interior Walls.

Any The ampacity of any wiring behind heating panels or heating panel sets located in interior walls orpartitions shall be considered as operating at an calculated on the basis of an assumed ambienttemperature of 40°C (104°F), and the ampacity shall be calculated on the basis of the applying correctionfactors given in the 0–2000 volt ampacity tables of Article 310.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: This section has been revised for clarity.

Response Message:

Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.


Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.



Current proposed text: (B) Interior Walls. The ampacity of any wiring behind heating panels or heating panel sets


66 of 141 4/17/2015 2:48 PM

located in interior walls or partitions shall be calculated on the basis of an assumed ambient temperature of 40°C(104°F), applying correction factors given in the 0–2000 volt ampacity tables of Article 310. Suggested rewording:(B) Interior Walls. The ampacity of any wiring behind heating panels or heating panel sets located in interior wallsor partitions shall be calculated on the basis of an assumed ambient temperature of 40°C (104°F), when applyingcorrection factors given in the 0–2000 volt ampacity tables of Article 310.


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424.97 Nonheating Leads.

Excess nonheating leads of heating panels or heating panel sets shall be permitted to be cut to therequired length. They shall meet the installation requirements of the wiring method employed inaccordance with 424.96 . Nonheating leads shallbe as indicated in the manufacturer's installationinstructions. Nonheating leads that are an integral part of a heating panel and a heating panel set and ,either attached or provided by the manufacturer as part of a terminal junction assembly, shall not besubjected to the ampacity requirements of 424.3(B) for branch circuits.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The requirements were clarified to indicate that cutting of nonheating leads is permitted where themanufacturer’s instructions, addressed as part of the product listing, so specify. The ampacityrequirement was clarified to distinguish nonheating leads that are integral with the heating panel /heating panel set, and therefore addressed by the product listing, and those supplied in the field thatmust fulfill branch circuit ampacity requirements.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.




68 of 141 4/17/2015 2:48 PM

Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


69 of 141 4/17/2015 2:48 PM


424.98 Installation in Concrete or Poured Masonry.

(A) Maximum Heated Area.

Heating panels or heating panel sets shall not exceed 355 watts/m 2 (33 watts/ft 2 ) of heated area.

(A) Secured in Place and Identified as Suitable.

Heating panels or heating panel sets shall be secured in place by means specified in the manufacturer’sinstructions and identified as suitable for the installation.

(B) Expansion Joints.

Heating panels or heating panel sets shall not be installed where they bridge expansion joints unlessprovision is made for expansion and contraction.

(C) Spacings.

Spacings shall be maintained between heating panels or heating panel sets and metal embedded in thefloor. Grounded metal-clad heating panels shall be permitted to be in contact with metal embedded in thefloor.

(D) Protection of Leads.

Leads shall be protected where they leave the floor by rigid metal conduit, intermediate metal conduit,rigid nonmetallic conduit, or electrical metallic tubing, or by other approved means.

(E) Bushings or Fittings Required.

Bushings or approved fittings shall be used where the leads emerge within the floor slabs.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revision eliminates a prescriptive installation criterion that does not take into account theheating panel and panel set design which is addressed in the product safety standard.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention


70 of 141 4/17/2015 2:48 PM

Affirmative All

Blewitt, Thomas V.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


Cook, Donald R.

IAEI generally supports action in FR 4837, but new item (D) indicates leads shall be protected by one of severalprescriptive wiring methods or other approved means. The requirement provides no basis for that "otherapproved" means. Item (E) requires bushings or other approved fitting to be provided where leads emerge withinthe floor slab. The requirement provides no basis for that "approved fitting". An NEC requirement should notexpect or permit an approval with no basis for the AHJ to provide that approval. Text should provide clarificationfor the existing phrase "emerge within the floor slab" in item (E).


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Part X. Low-Voltage Fixed Electric Space-Heating Equipment

424.100 Scope.

Low-voltage fixed electric space-heating equipment shall consist of an isolating power supply,low-voltage heaters, and associated equipment that are all identified for use in dry locations.

424.101 Energy Source.

(A) Power Unit.

The power unit shall be an isolating type with a rated output not exceeding 25 amperes, 30 volts (42.4volts peak) ac, or 60 volts dc under all load conditions.

(B) Alternate Energy Sources.

Listed low-voltage fixed electric space-heating equipment shall be permitted to be supplied directly froman alternate energy source such as solar photovoltaic (PV) or wind power. When supplied from such asource, the source and any power conversion equipment between the source and the heatingequipment and its supply shall be listed and comply with the applicable section of the NEC for thesource used. The output of the source shall meet the limits of 424.101(A) .

424.102 Listed Equipment.

Low-voltage fixed electric space-heating equipment shall be listed and labeled as a complete system.

424.103 Installation.

(A) General.

Equipment shall be installed per the manufacturer’s installation instructions.

(B) Ground.

Secondary circuits shall not be grounded.

(C) Ground-Fault Protection.

Ground-fault protection shall not be required.

424.104 Branch Circuit.

(A)

Equipment shall be permitted to be supplied from branch circuits rated not over 30 amperes.

(B)

The equipment shall be considered a continuous duty load.




Street Address:

City:

State:

Zip:

Submittal Date: Wed Jan 14 08:10:58 EST 2015

Committee Statement

CommitteeStatement:

This revision includes requirements for a new technology which was not addressed in the NEC.The Panel made the assumption that this will be used in dry location.

ResponseMessage:

Public Input No. 3565-NFPA 70-2014 [New Section after 424.99(C)(5)]

Ballot Results


72 of 141 4/17/2015 2:48 PM


11 Eligible Voters

0 Not Returned

8 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Krepps, Rachel E.


Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


Jhonson, Don W.

I agree with the proposed change with added clarification; The Low-Voltage Fixed Electric Space-HeatingEquipment and associated power supply shall be labeled and identified as Listed Class 2 equipment rated inconformance with Chapter 9, Table 11(A) or Table 11(B). The FR as written is unclear if the low-voltage fixedelectric space-heating equipment and the power supplying the equipment is required to be Class 2.


The panel statement states that this is assumed to be used in a dry location. Perhaps the article should berevised to clearly state that this if for dry locations only.

Schapp, Ronald F.

424.102 Listing. Requiring "labeling"in addition to" listing" is not appropriate. Refer to negative comment to FR4803.


73 of 141 4/17/2015 2:48 PM


(B) Maximum Heated Area.

Heating panels or panel sets installed under floor covering shall not exceed 160 watts/m 2 (15

watts/ft 2 ) of heated area.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revision eliminates a prescriptive installation criterion that does not take into account theheating panel and panel set design which is addressed in the product safety standard.

ResponseMessage:


Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


74 of 141 4/17/2015 2:48 PM

First Revision No. 4839-NFPA 70-2015 [ Section No. 424.99(C)(4) ]

(4) Coverings.

After heating panels or heating panel sets are installed and inspected, they shall be permitted to becovered by a floor covering that has been identified by the manufacturer as being suitable for theinstallation. The covering shall be secured to the heating panel or heating panel sets with release-typeadhesives or by means identified for this use.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The last sentence of this section has been removed as the requirement is addressed in theproduct safety standard.

Public Input No. 3559-NFPA 70-2014 [Section No. 424.99(C)(4)]

Ballot Results


11 Eligible Voters

0 Not Returned

11 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


75 of 141 4/17/2015 2:48 PM

First Revision No. 4841-NFPA 70-2015 [ New Section after 424.99(C)(5) ]

Article 425 Fixed Resistance and Electrode Industrial Process Heating Equipment

Part I. General

425.1 Scope.

This article covers fixed industrial process heating employing electric resistance or electrode heatingtechnology. For the purpose of this article, heating equipment shall include boilers, electrode boilers,duct heaters, strip heaters, immersion heaters, process air heaters, or other approved fixed electricequipment used for industrial process heating. This article shall not apply to heating and room airconditioning for personnel spaces covered by Article 424 , fixed heating equipment for pipelines andvessels covered by Article 427 , and induction and dielectric heating equipment covered by Article665 .

425.2 Other Articles.

Fixed industrial process heating equipment incorporating a hermetic refrigerant motor-compressor shallalso comply with Article 440 .

425.3 Branch Circuits.

(A) Branch-Circuit Requirements.

Individual branch circuits shall be permitted to supply any volt-ampere or wattage rating of fixedindustrial process heating equipment for which they are rated.

(B) Branch-Circuit Sizing.

Fixed industrial process heating equipment and motors shall be considered continuous loads.

425.6 Listed Equipment.

Fixed industrial process heating equipment and motors shall be considered continuous loads.

Part II. Installation

425.8 General.

(A) Location.

Fixed industrial process heating equipment shall be located with respect to building construction andother equipment so as to permit access to the equipment. Sufficient clearance shall be maintained topermit replacement of controls and heating elements and for adjusting and cleaning of controls andother parts requiring such attention.

(B) Working Space.

Working space about electrical enclosures for fixed industrial process heating equipment that requireexamination, adjustment, servicing, or maintenance while energized shall be accessible, and the workspace for personnel shall comply with 110.26 and 110.34 , based upon the utilization voltage toground.

Exception: With special permission, in industrial establishments only, where conditions ofmaintenance and supervision ensure that only qualified persons will service the installation, workingspace less than that required in 110.26 or 110.34 shall be permitted.

(C) Above Grade Level, Floor, or Work Platform.

Where the enclosure is located above grade, the floor, or a work platform, all of the following shall apply:

(1) The enclosure shall be accessible.

(2) The width of the working space shall be the width of the enclosure or a minimum of 762 mm (30in.), whichever is greater.

(3) The depth of the workspace shall comply with 110.26(A) or 110.34 based upon the voltage toground.

(4) All doors or hinged panels shall open to at least 90 degrees.

425.9 Approval.

All fixed industrial process heating equipment shall be installed in an approved manner.


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425.10 Special Permission.

Fixed industrial process heating equipment and systems installed by methods other than covered by thisarticle shall be permitted only by special permission.

425.11 Supply Conductors.

Fixed industrial process heating equipment requiring supply conductors with over 60°C insulation shallbe clearly and permanently marked. This marking shall be plainly visible after installation and shall bepermitted to be adjacent to the field connection box.

425.12 Locations.

(A) Exposed to Physical Damage.

Where subject to physical damage, fixed industrial process heating equipment shall be protected in anapproved manner.

(B) Damp or Wet Locations.

Fixed industrial process heating equipment installed in damp or wet locations shall be listed for suchlocations and shall be constructed and installed so that water or other liquids cannot enter oraccumulate in or on wired sections, electrical components, or ductwork.

Informational Note: See 110.11 for equipment exposed to deteriorating agents.

425.13 Spacing from Combustible Materials.

Fixed industrial process heating equipment shall be installed to provide the required spacing betweenthe equipment and adjacent combustible material, unless it is listed to be installed in direct contact withcombustible material.

425.14 Infrared Lamp Industrial Heating Equipment.

In industrial occupancies, infrared industrial process heating equipment lampholders shall be permittedto be operated in series on circuits of over 150 volts to ground, provided the voltage rating of thelampholders is not less than the circuit voltage.

Each section, panel, or strip carrying a number of infrared lampholders, including the terminal wiring ofsuch section, panel, or strip, shall be considered as infrared industrial heating equipment. The terminalconnection block of each assembly shall be considered an individual outlet.

Part III. Control and Protection of Fixed Industrial Process Heating Equipment

425.19 Disconnecting Means.

Means shall be provided to simultaneously disconnect the heater, motor controller(s), andsupplementary overcurrent protective device(s) of all fixed industrial process heating equipment from allungrounded conductors. Where heating equipment is supplied by more than one source, feeder, orbranch circuit, the disconnecting means shall be grouped and identified as having multipledisconnecting means. Each disconnecting means shall simultaneously disconnect all ungroundedconductors that it controls. The disconnecting means specified in 425.19(A) and (B) shall have anampere rating not less than 125 percent of the total load of the motors and the heaters and shall belockable in accordance with 110.25

(A) Heating Equipment with Supplementary Overcurrent Protection.

The disconnecting means for fixed industrial process heating equipment with supplementary overcurrentprotection shall be within sight from the supplementary overcurrent protective device(s), on the supplyside of these devices, if fuses, and, in addition, shall comply with either 425.19(A)(1) or (A)(2).

(1) Heater Containing No Motor Rated over 1 ⁄8 Horsepower.

The disconnecting means specified in 425.19 or unit switches complying with 425.19(C) shall bepermitted to serve as the required disconnecting means for both the motor controller(s) and heaterunder either of the following conditions:

(1) The disconnecting means provided is also within sight from the motor controller(s) and the heater.

(2) The disconnecting means is lockable in accordance with 110.25 .


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(2) Heater Containing a Motor(s) Rated over 1 ⁄8 Horsepower.

The above disconnecting means shall be permitted to serve as the required disconnecting means forboth the motor controller(s) and heater under either of the following conditions:

(1) The disconnecting means is in sight from the motor controller(s) and the heater and complies withPart IX of Article 430 .

(2) Motor(s) of more than 1 ⁄8 hp and the heater are provided with a single unit switch that complieswith 422.34(A) , (B), (C), or (D), the disconnecting means shall be permitted to be out of sightfrom the motor controller.

(B) Heating Equipment Without Supplementary Overcurrent Protection.

(1) Without Motor or with Motor Not over 1 ⁄8 Horsepower.

For fixed industrial process heating equipment without a motor rated over 1 ⁄8 hp, the branch-circuitswitch or circuit breaker shall be permitted to serve as the disconnecting means where the switch orcircuit breaker is within sight from the heater or is lockable in accordance with 110.25 .

(2) Over 1 ⁄8 Horsepower.

For motor-driven fixed industrial process heating equipment with a motor rated over 1 ⁄8 hp, adisconnecting means shall be located within sight from the motor controller or shall be permitted tocomply with the requirements in 425.19(A)(2) .

(C) Unit Switch(es) as Disconnecting Means.

A unit switch(es) with a marked “off” position that is part of a fixed heater and disconnects allungrounded conductors shall be permitted as the disconnecting means required by this article. Thebranch circuit switch or circuit breaker, where readily accessible for servicing of the fixed heater, shall bepermitted as the other disconnecting means.

425.21 Switch and Circuit Breaker to Be Indicating.

Switches and circuit breakers used as disconnecting means shall be of the indicating type.

425.22

(A) Branch-Circuit Devices.

Fixed industrial process heating equipment other than such motor-operated equipment as required byArticles 430 and 440 to have additional overcurrent protection shall be permitted to be protectedagainst overcurrent where supplied by one of the branch circuits in Article 210 .

(B) Resistance Elements.

Resistance-type heating elements in fixed industrial process heating equipment shall be protected at notmore than 60 amperes. Equipment rated more than 48 amperes and employing such elements shallhave the heating elements subdivided, and each subdivided load shall not exceed 48 amperes. Where asubdivided load is less than 48 amperes, the rating of the supplementary overcurrent protective deviceshall comply with 425.3(B) . A boiler employing resistance-type immersion heating elements containedin an ASME-rated and stamped vessel shall be permitted to comply with 425.72(A) .

(C) Overcurrent Protective Devices.

The supplementary overcurrent protective devices for the subdivided loads specified in 425.22(B) shallbe (1) factory installed within or on the heater enclosure or supplied for use with the heater as aseparate assembly by the heater manufacturer; (2) accessible, but shall not be required to be readilyaccessible; and (3) suitable for branch-circuit protection.

Informational Note No. 1: See 240.10 . Where cartridge fuses are used to provide thisovercurrent protection, a single disconnecting means shall be permitted to be used for theseveral subdivided loads.

Informational Note No. 2: For supplementary overcurrent protection, see 240.10 .

Informational Note No. 3: disconnecting means for cartridge fuses in circuits of any voltage, see240.40 .


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(D) Branch-Circuit Conductors.

The conductors supplying the supplementary overcurrent protective devices shall be considered branch-circuit conductors.

Where the heaters are rated 50 kW or more, the conductors supplying the supplementary overcurrentprotective devices specified in 425.22(C) shall be permitted to be sized at not less than 100 percent ofthe nameplate rating of the heater, provided all of the following conditions are met:

(1) The heater is marked with a minimum conductor size.

(2) The conductors are not smaller than the marked minimum size.

(3) A temperature-actuated device controls the cyclic operation of the equipment.

(E) Conductors for Subdivided Loads.

Field-wired conductors between the heater and the supplementary overcurrent protective devices forfixed industrial process heating equipment shall be sized at not less than 125 percent of the loadserved. The supplementary overcurrent protective devices specified in 425.22(C) shall protect theseconductors in accordance with 240.4 . Where the heaters are rated 50 kW or more, the ampacity offield-wired conductors between the heater and the supplementary overcurrent protective devices shallbe permitted to be not less than 100 percent of the load of their respective subdivided circuits, providedall of the following conditions are met:



(3) A temperature-activated device controls the cyclic operation of the equipment.

Part IV. Marking of Heating Equipment

425.28 Nameplate.

(A) Marking Required.

Fixed industrial process heating equipment shall be provided with a nameplate giving the identifyingname and the normal rating in volts and watts or in volts and amperes.

Fixed industrial process heating equipment intended for use on alternating current only, direct currentonly, or both shall be marked to so indicate. The marking of equipment consisting of motors over 1 ⁄8 hpand other loads shall specify the rating of the motor in volts, amperes, and frequency and the heatingload in volts and watts or in volts and amperes.

(B) Location.

This nameplate shall be located so as to be visible or easily accessible after installation.

425.29 Marking of Heating Elements.

All heating elements that are replaceable in the field and are part of industrial process heatingequipment shall be legibly marked with the ratings in volts or watts or in volts or amperes.

425.45 Concealed Fixed Industrial Heating Equipment — Inspection and Tests.

Concealed fixed industrial heating equipment installations shall be made with due care to preventdamage to the heating equipment and shall be inspected and approved before heating equipment iscovered or concealed.

Part V. Fixed Industrial Process Duct Heaters

425.57 General.

Part V shall apply to any heater mounted in the airstream of a forced-air system where the air-movingunit is not provided as an integral part of the equipment.

425.58 Identification.

Heaters installed in an air duct shall be identified as suitable for the installation.

425.59 Airflow.

Means shall be provided to ensure uniform airflow over the face of the heater in accordance with themanufacturer’s instructions.

Informational Note: Some heaters installed within 1.2 m (4 ft) of the outlet of an air-movingdevice, elbows, baffle plates, or other obstructions in ductwork use turning vanes, pressureplates, or other devices on the inlet side of the duct heater to ensure an even distribution of airover the face of the heater.


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425.60 Elevated Inlet Temperature.

Duct heaters intended for use with elevated inlet air temperature shall be identified as suitable for use atthe elevated temperatures.

425.63 Fan Circuit Interlock.

Means shall be provided to ensure that the fan circuit, where present, is energized when any heatercircuit is energized. However, time- or temperature-controlled delay in energizing the fan motor shall bepermitted.

425.64 Limit Controls.

Each duct heater shall be provided with an approved, integral, automatic-reset temperature limitingcontrol or controllers to de-energize the circuit or circuits. In addition, an integral independentsupplementary control or controllers shall be provided in each duct heater that disconnects a sufficientnumber of conductors to interrupt current flow. This device shall be manually resettable or replaceable.

425.65 Location of Disconnecting Means.

Duct heater controller equipment shall be either accessible with the disconnecting means installed at orwithin sight from the controller or as permitted by 425.19(A) .

Part VI. Fixed Industrial Process Resistance-Type Boilers

425.70 Scope.

The provisions in Part VI of this article shall apply to boilers employing resistance-type heatingelements. Electrode-type boilers shall not be considered as employing resistance-type heatingelements. See Part VII of this article.


Resistance-type boilers shall be identified as suitable for the installation.

425.72 Overcurrent Protection.

(A) Boiler Employing Resistance-Type Immersion Heating Elements in an ASME-Rated and StampedVessel.

A boiler employing resistance-type immersion heating elements contained in an ASME-rated andstamped vessel shall have the heating elements protected at not more than 150 amperes. Such a boilerrated more than 120 amperes shall have the heating elements subdivided into loads not exceeding 120amperes. Where a subdivided load is less than 120 amperes, the rating of the overcurrent protectivedevice shall comply with 425.3(B) .

(B) Boiler Employing Resistance-Type Heating Elements Rated More Than 48 Amperes and NotContained in an ASME-Rated and Stamped Vessel.

A boiler employing resistance-type heating elements not contained in an ASME-rated and stampedvessel shall have the heating elements protected at not more than 60 amperes. Such a boiler ratedmore than 48 amperes shall have the heating elements subdivided into loads not exceeding 48amperes. Where a subdivided load is less than 48 amperes, the rating of the overcurrent protectivedevice shall comply with 425.3(B) .

(C) Supplementary Overcurrent Protective Devices.

The supplementary overcurrent protective devices for the subdivided loads as required by 425.72(A)and (B) shall be as follows:

(1) Factory-installed within or on the boiler enclosure or provided as a separate assembly by theboiler manufacturer.

(2) Accessible, but need not be readily accessible.

(D) Suitable for Branch-Circuit Protection.

Where cartridge fuses are used to provide this overcurrent protection, a single disconnecting meansshall be permitted for the several subdivided circuits. See 240.40 .


80 of 141 4/17/2015 2:48 PM

(E) Conductors Supplying Supplementary Overcurrent Protective Devices.

The conductors supplying these supplementary overcurrent protective devices shall be consideredbranch-circuit conductors. Where the heaters are rated 50 kW or more, the conductors supplying theovercurrent protective device specified in 424.72(C) shall be permitted to be sized at not less than 100percent of the nameplate rating of the heater, provided all of the following conditions are met:



(3) A temperature- or pressure-actuated device controls the cyclic operation of the equipment.

(F) Conductors for Subdivided Loads.

Field-wired conductors between the heater and the supplementary overcurrent protective devices shallbe sized at not less than 125 percent of the load served. The supplementary overcurrent protectivedevices specified in 425.72(C) shall protect these conductors in accordance with 240.4 . Where theheaters are rated 50 kW or more, the ampacity of field-wired conductors between the heater and thesupplementary overcurrent protective devices shall be permitted to be not less than 100 percent of theload of their respective subdivided circuits, provided all of the following conditions are met:



(3) A temperature-activated device controls the cyclic operation of the equipment.

425.73 Overtemperature Limit Control.

Each boiler designed so that in normal operation there is no change in state of the heat transfer mediumshall be equipped with a temperature-sensitive limiting means. It shall be installed to limit maximumliquid temperature and shall directly or indirectly disconnect all ungrounded conductors to the heatingelements. Such means shall be in addition to a temperature-regulating system and other devicesprotecting the tank against excessive pressure.

425.74 Overpressure Limit Control.

Each boiler designed so that in normal operation there is a change in state of the heat transfer mediumfrom liquid to vapor shall be equipped with a pressure-sensitive limiting means. It shall be installed tolimit maximum pressure and shall directly or indirectly disconnect all ungrounded conductors to theheating elements. Such means shall be in addition to a pressure-regulating system and other devicesprotecting the tank against excessive pressure.

Part VII. Fixed Industrial Process Electrode-Type Boilers

425.80 Scope.

The provisions in Part VII of this article shall apply to boilers for operation at 600 volts, nominal, or less,in which heat is generated by the passage of current between electrodes through the liquid beingheated.


Electrode-type boilers shall be identified as suitable for the installation.

425.82 Branch-Circuit Requirements.

The size of branch-circuit conductors and overcurrent protective devices shall be calculated on the basisof 125 percent of the total load (motors not included). A contactor, relay, or other device, approved forcontinuous operation at 100 percent of its rating, shall be permitted to supply its full-rated load. See210.19(A) .

Exception: The provisions of this section shall not apply to conductors that form an integral part of anapproved boiler. Where an electrode boiler is rated 50 kW or more, the conductors supplying theboiler electrode(s) shall be permitted to be sized at not less than 100 percent of the nameplate ratingof the electrode boiler, provided all the following conditions are met:

(1) The electrode boiler is marked with a minimum conductor size.


(3) A temperature- or pressure-actuated device controls the cyclic operation of the equipment.


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425.83 Overtemperature Limit Control.

Each boiler, designed so that in normal operation there is no change in state of the heat transfermedium, shall be equipped with a temperature-sensitive limiting means. It shall be installed to limitmaximum liquid temperature and shall directly or indirectly interrupt all current flow through theelectrodes. Such means shall be in addition to the temperature regulating system and other devicesprotecting the tank against excessive pressure.

425.84 Overpressure Limit Control.

Each boiler, designed so that in normal operation there is a change in state of the heat transfer mediumfrom liquid to vapor, shall be equipped with a pressure-sensitive limiting means. It shall be installed tolimit maximum pressure and shall directly or indirectly interrupt all current flow through the electrodes.Such means shall be in addition to a pressure-regulating system and other devices protecting the tankagainst excessive pressure.

425.85 Grounding.

For those boilers designed such that fault currents do not pass through the pressure vessel, and thepressure vessel is electrically isolated from the electrodes, all exposed non–current-carrying metalparts, including the pressure vessel, supply, and return connecting piping, shall be grounded. For allother designs, the pressure vessel containing the electrodes shall be isolated and electrically insulatedfrom ground.

425.86 Markings.

All electrode-type boilers shall be marked to show the following:

(1) The manufacturer’s name.

(2) The normal rating in volts, amperes, and kilowatts.

(3) The electrical supply required specifying frequency, number of phases, and number of wires.

(4) The marking “Electrode-Type Process Heating Boiler.”

(5) A warning marking, “All Power Supplies Shall Be Disconnected Before Servicing, IncludingServicing the Pressure Vessel.” A field-applied warning marking or label shall comply with110.21(B) .

The nameplate shall be located so as to be visible after installation.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: This language provides requirements for industrial process heating equipment.

Response Message:


Ballot Results


9 Eligible Voters

0 Not Returned


82 of 141 4/17/2015 2:48 PM

6 Affirmative All



0 Abstention

Affirmative All

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.


Blewitt, Thomas V.

The proposal to create a distinct Article for “Fixed Resistance and Electrode Industrial Process HeatingEquipment” has merit. Therefore the Panel did spend considerable time on edits to the proposal found necessaryby the Panel Task Group. However, the resulting First Revision needs additional critical review by industrialprocess heating equipment experts. For example, the First Revision is essentially a rewrite of relevant Article 424content without apparent reference to NFPA 79 and 86; additional critical review will determine if this presents anissue or not.

Cook, Donald R.

IAEI supports the concept of requirements for "process" heating equipment and agrees that scopes of existingArticles do not currently address the equipment considered in this PI and FR. From a usability standpoint, we arenot sure that a new Article with yet another type of heating equipment is the best way to accomplish the need toaddress process heating equipment. However, it was the method submitted in the public input process. The NECalready addressed heating equipment requirements in Articles 422, 424, 426, and 427. A different option toaddress that gap for "process heating equipment" might be a combination of the new and existing requirementsinto a single "Heating Equipment" article with common items in the "general" Part and multiple Parts to addressspecific equipment and installation requirements. Each time an additional Article is added, we risk correlationissues. Would the use of a boiler in an Article 422, in an Article 424, or in a proposed Article 425 be different froman electrical safety standpoint? It is difficult to understand how the functionality of the branch circuit conductors,the overcurrent device, and the equipment grounding conductor would be different. The affirmative IAEI vote is toclose the gap for process heating equipment. The comment is to suggest there may be an alternative means toaccomplish that objective.


Yasenchak, Randy J.

Don't agree that there is a need for another heating article in the NEC. Agree that the scopes of the existingarticles do not currently address this type of equipment. There are many articles throughout the NEC that manytype of the same technology (example 410). The consolidation of heating articles and a more streamlinedapproach may be warranted. Adding additional articles to the NEC can become a correlation issue and reduceclarity for the user, for an electrical safety and installation standpoint some rules in Art 424, 426 and 427 arealready repetitive and redundant. Suggest TCC look at correlation issue.


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First Revision No. 4838-NFPA 70-2015 [ Section No. 424.99(C)(5) ]

(5) Fault Protection.

A device to open all ungrounded conductors supplying the heating panels or heating panel sets, providedby the manufacturer, shall function when a low- or high-resistance line-to-line, line-to-grounded conductor,or line-to-ground fault occurs, such as the result of a penetration of the element or element assembly.

Informational Note: An integral grounding shield may be required to provide this protection.

(6) Grounding Braid or Sheath.

Excluding nonheating leads, grounding means, such as copper braid, metal sheath, or other approvedmeans, shall be provided with or as integral part of the heating panel or heating panel set.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

A ground shield over the active electrical circuitry must be provided in order for a GFCI toperform its intended function. The consistent use of GFCI will increase safety.


Ballot Results


12 Eligible Voters

0 Not Returned

10 Affirmative All



1 Abstention

Affirmative All

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Swim, Peter C.

Williams, Matt B.

Yasenchak, Randy J.


84 of 141 4/17/2015 2:48 PM


Blewitt, Thomas V.

The original Code language predated the availability of inexpensive GFCI protection and sought to enable the useof specialty “fault protection” devices under consideration at the time. The informational note was included,however, to prompt the use of a grounding shield where protection was based on GFCI technology. That is,penetration to a live part would have to occur after the grounding shield were contacted and penetrated, causingthe operation of a GFCI. The specialty fault protection devices never materialized in the market and therefore it isunnecessary to describe their functionality. In addition, the new “(6) Grounding Braid or Sheath” criteria virtuallyensures that a GFCI will be used for fault protection and this is consistent with the Committee Statement (“Theconsistent use of GFCI will increase safety”). Lastly, the grounding braid / sheath and GFCI combination is alsoeffective in meeting the original “fault protection” intent with respect to risk of fire. For these reasons, “(5) FaultProtection” should instead simply refer to Ground-Fault Circuit-Interrupter Protection for Personnel (GFCI).

Abstention


APSP does not vote on 424.


85 of 141 4/17/2015 2:48 PM


426.1 Scope.

The requirements of this article shall apply to electrically energized heating systems and the installation ofthese systems.

(A) Embedded.

Embedded in driveways, walks, steps, and other areas.

(B) Exposed.

Exposed on drainage systems, bridge structures, roofs, and other structures.

Informational Note: For further information, see ANSI/IEEE 515.1-2012, Standard for the Testing,Design, Installation and Maintenance of Electrical Resistance Trace Heating for CommercialApplications .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The panel added an informational note to inform the user of installation information providedin ANSI/IEEE 515.1 2012

ResponseMessage:


Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



86 of 141 4/17/2015 2:48 PM


Schapp, Ronald F.

Yasenchak, Randy J.


Shell, Kenneth M.

I am voting affirmative


87 of 141 4/17/2015 2:48 PM


426.4 Continuous Load.

Fixed outdoor electric deicing and snow-melting equipment shall be considered as a continuous load.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: This section is revised for clarity.

Response Message:

Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Shell, Kenneth M.



88 of 141 4/17/2015 2:48 PM


426.32 Voltage Limitations.

Unless protected by ground-fault circuit-interrupter protection for personnel, the The secondary winding ofthe isolation transformer connected to the impedance heating elements shall not have an output voltagegreater than 30 volts ac.

Where ground-fault circuit-interrupter protection for personnel is provided, the voltage shall be permittedto be greater than 30 but not more than 80 volts.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revision deletes the requirement for GFCI protection and limit the voltage to 30voltsAC

Response Message:


Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.



89 of 141 4/17/2015 2:48 PM

Shell, Kenneth M.



90 of 141 4/17/2015 2:48 PM


427.1 Scope.

The requirements of this article shall apply to electrically energized heating systems and the installation ofthese systems used with pipelines or vessels or both.

Informational Note: For further information, see ANSI/IEEE 515-2002 2011 , Standard for theTesting, Design, Installation and Maintenance of Electrical Resistance Heat Tracing Trace Heatingfor Industrial Applications; ANSI/IEEE 844-2000, Recommended Practice for Electrical Impedance,Induction, and Skin Effect Heating of Pipelines and Vessels; and ANSI/NECA 202-2006 2013 ,Standard for Installing and Maintaining Industrial Heat Tracing Systems.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: The text has been updated to current references.

Response Message:




Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.


91 of 141 4/17/2015 2:48 PM

Yasenchak, Randy J.


Shell, Kenneth M.



92 of 141 4/17/2015 2:48 PM


427.20 Marking.

Each factory-assembled heating unit shall be legibly marked within 75 mm (3 in.) of each an end of thenonheating leads with the permanent identification symbol, catalog number, and ratings in volts and wattsor in volts and amperes.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: This revision revises text to clear up confusion.

Response Message:


Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Shell, Kenneth M.



93 of 141 4/17/2015 2:48 PM


427.27 Voltage Limitations.

Unless protected by ground-fault circuit-interrupter protection for personnel, the The secondary winding ofthe isolation transformer connected to the pipeline or vessel being heated shall not have an output voltagegreater than 30 volts ac.

Where ground-fault circuit-interrupter protection for personnel is provided, the voltage shall be permittedto be greater than 30 but not more than 80 volts.

Exception No. 1: In industrial establishments, the isolation transformer connected to the pipeline orvessel being heated shall be permitted to have an output voltage greater than 30 but not more than 80volts ac to ground where all of the following conditions apply:

(1) Conditions of guarding, maintenance, and supervision ensure that only qualified persons haveaccess to the installed systems.

(2) Ground-fault protection of equipment is provided.

Exception No. 2: In industrial establishments, the isolation transformer connected to the pipeline orvessel being heated shall be permitted to have an output voltage not greater than 132 volts ac to groundwhere all of the following conditions apply:

(1) Conditions of guarding, maintenance, and supervision ensure that only qualified persons servicethe installed systems.

(2) Ground-fault protection of equipment is provided.

(3) The pipeline or vessel being heated is completely enclosed in a grounded metal enclosure.

(4) The transformer secondary connections to the pipeline or vessel being heated are completelyenclosed in a grounded metal mesh or metal enclosure.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The GFCI for personnel exception is being replaced by a combination of GFPE, guarding, andaccess control for operating voltages between 30 and 80 volts. Guarding has also been includedin the existing exception for clarification.

ResponseMessage:


Ballot Results


11 Eligible Voters


94 of 141 4/17/2015 2:48 PM

0 Not Returned

9 Affirmative All



1 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Shell, Kenneth M.


Abstention


APSP does not vote on 427.


95 of 141 4/17/2015 2:48 PM


427.57 Overcurrent Protection.

Heating equipment shall be considered as protected against overcurrent where supplied by a branchcircuit as specified in 210.18 and 210.23.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: This section is revised for clarity.

Response Message:

Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.

Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Shell, Kenneth M.



96 of 141 4/17/2015 2:48 PM

First Revision No. 4873-NFPA 70-2015 [ Definition: Storable Swimming, Wading, or

Immersion Pools; ... ]

Storable Swimming, Wading, or Immersion Pools; or Storable/Portable Spas and Hot Tubs.

Those Swimming, wading, or immersion pools that are intended to be stored when not in use,constructed on or above the ground and are capable of holding water to a maximum depth of 1.0 m (42in.), or a pool, spa, or hot tub constructed on or above the ground, with nonmetallic, molded polymericwalls or inflatable fabric walls regardless of dimension.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The revision clarifies this definition by adding "on or above the ground" which is the basis forthe requirements within this article.

ResponseMessage:

Public Input No. 1310-NFPA 70-2014 [Definition: Storable Swimming, Wading, or Immersion Pools; ...]

Ballot Results


10 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


97 of 141 4/17/2015 2:48 PM

First Revision No. 4860-NFPA 70-2015 [ New Definition after Definition: Dry-Niche

Luminaire. ]

Electrically Powered Pool Lift.

An electrically powered lift that provides accessibility to and from a pool or spa for people withdisabilities.




Street Address:

City:

State:

Zip:


Committee Statement

Committee Statement: This revision defines a new term now found in Part VIII of this article

Response Message:

Ballot Results


10 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


98 of 141 4/17/2015 2:48 PM


680.3 Other Articles.

Except as modified by this article, wiring and equipment in or adjacent to pools and fountains shallcomply with other applicable provisions of this Code , including those provisions identified in Table680.3 .

Table 680.3 Other Articles

Topic Section or Article

Site lighting systems operating at 30 volts or less 411.4(B)

Audio equipment Article 640, Parts I and II

Adjacent to pools and fountains 640.10

Underwater speakers*

*Underwater loudspeakers shall be installed in accordance with 680.27(A).




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Existing 680.3 is already covered by NEC 90.3. Repeating that information in 680.3 servesno purpose.

Response Message:




Ballot Results


10 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


99 of 141 4/17/2015 2:48 PM


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


100 of 141 4/17/2015 2:48 PM


680.4 Approval of Equipment.

All electrical equipment installed in the water, walls, or decks of pools, fountains, and similar installationsshall comply with the provisions of this article. Equipment and products shall be listed and labeled.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The existing text in 680.4 recognizes and acknowledges that equipment within the scope of Article680 includes both site installations of products and site installations of manufactured equipment.Additional text recognizes that site installations will not be listed, however listing of products andfactory assembled equipment better assures those items comply with applicable product standardsand facilitate approval by AHJs. The addition of “and Labeled” was included to comply with otherFRs made by this panel


Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Yasenchak, Randy J.


Schapp, Ronald F.


101 of 141 4/17/2015 2:48 PM

Requiring "labeling" in addition to "listing" is not appropriate. Refer to negative comment to FR 4803.


102 of 141 4/17/2015 2:48 PM


680.7 Grounding and Bonding Terminals.

Grounding and bonding terminals shall be identified for use in wet and corrosive environments. Field-installed grounding and bonding connections in a damp, wet, or corrosive environment shall becomposed of copper, copper alloy, or stainless steel. They shall be listed and labeled for direct burialuse.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Grounding and bonding terminals at pools, spas, hot tubs, etc. are subjected to severeenvironmental conditions including wet and corrosive conditions. This proposed new text will addspecific requirements to address those conditions.

The specification of copper, copper alloy or stainless steel is intended to provide more corrosionresistant materials. Some connectors utilizing plated steel set-screws have not proven to haveacceptable long-term reliability. The specification of direct burial use is intended to mandate copperalloys of minimum 80 percent copper. This alloy specification is in the listing requirements forconnectors to be marked suitable for direct burial.

ResponseMessage:


Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.


103 of 141 4/17/2015 2:48 PM

Krepps, Rachel E.



Yasenchak, Randy J.


Schapp, Ronald F.

Requiring "labeling" in addition to "listing" is not appropriate. Refer to negative comment to FR 4803.


104 of 141 4/17/2015 2:48 PM


680.11 Underground Wiring Location.

Underground wiring shall not be permitted under the pool or within the area extending 1.5 m (5 ft)horizontally from the inside wall of be permitted where installed in rigid metal conduit, intermediate metalconduit, rigid polyvinyl chloride conduit, reinforced thermosetting resin conduit, or Type MC cable, suitablefor the conditions subject to that location. Underground wiring shall not be permitted under the poolunless this wiring is necessary to supply pool equipment permitted by this article. Where space limitationsprevent wiring from being routed a distance 1.5 m (5 ft) or more from the pool, such wiring shall bepermitted where installed in complete raceway systems of rigid metal conduit, intermediate metal conduit,or a nonmetallic raceway system. All metal conduit shall be corrosion resistant and suitable for thelocation. The minimum cover depth Minimum cover depths shall be as given in Table 300.5 . Table680.10 .

Table 680.10 Minimum Cover Depths

Wiring Method

MinimumCover

mm in.

Rigid metal conduit 150 6

Intermediate metal conduit 150 6

Nonmetallic raceways listed for direct burial under minimum of 102 mm (4 in.) thickconcrete exterior slab and extending not less than 162 mm (6 in.) beyond the undergroundinstallation

150 6

Nonmetallic raceways listed for direct burial without concrete encasement 450 18

Other approved raceways* 450 18

*Raceways approved for burial only where concrete encased shall require a concrete envelope not lessthan 50 mm (2 in.) thick.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This clarifies that the wiring methods underground near pools must be installed in a manner towithstand the conditions unique to the pool environment. Also only wiring related to pools may berun under pools to feed such things as approve up lights, etc. This resolves the conflicting languagestating only pool wiring may be within 5 feet and then in the next sentence it permits other wiringwithin the zone limited to pools. All underground wiring should be installed per Table 300.5, thuseliminating the requirement for table 680.10.

ResponseMessage:



105 of 141 4/17/2015 2:48 PM




Ballot Results


10 Eligible Voters

0 Not Returned

8 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.


Hunter, Randal

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Cook, Donald R.

IAEI supports revisions included in FR 4853. Title indicates it applies to 680.10, however in the new text it isidentified as 680.11. Verify numbering. Current NEC already includes different requirements in 680.11.


Jhonson, Don W.

Suggest the clarification: Wiring not associated with the pool equipment installed in approved raceways shall bein continuous raceway without access within 5-feet of the pool wall. The FR as written may allow junction boxes,hand holes or other access points within the 5-foot protected pool boundary.


106 of 141 4/17/2015 2:48 PM


680.12 Equipment Rooms and Pits.

Electrical equipment shall not be installed in rooms or pits that do not have drainage that prevents wateraccumulation during normal operation or filter maintenance. Equipment shall be suitable for theenvironment in accordance with 300.6 .

Informational Note: Chemicals such as chlorine cause severe corrosive and deteriorating effectson electrical connections, equipment, and enclosures when stored and kept in the same vicinity.Adequate ventilation of indoor spaces such as equipment and storage rooms is addressed byANSI/APSP-11, Standard for Water Quality in Public Pools and Spas , and can reduce thelikelihood of the accumulation of corrosive vapors.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The location of pool and spa equipment is subject to deteriorating chemicals. The equipment andwiring methods in these locations often fail due to this exposure. Chlorine and other pool chemicalsseverely deteriorate electrical connections of conductors, and accelerate rust and deterioration ofmetal parts of electrical equipment. These chemicals are stored, mixed and dispensed in the sameroom or area as the electrical equipment, which allows this exposure.

By addressing the suitability of the equipment for these locations we will allow an AHJ to addressthese issues, also the informational note adds clarity to the conditions CMP 17 is concerned with.

ResponseMessage:



Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.


107 of 141 4/17/2015 2:48 PM


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Cook, Donald R.

IAEI supports revisions included in FR 4854. Title indicates it applies to 680.11, however in the new text it isidentified as 680.12. Verify numbering. Current NEC already includes different requirements in 680.12.


108 of 141 4/17/2015 2:48 PM


(A) Wiring Methods.

The wiring to a pool motor shall comply with (A)(1) unless modified for specific circumstances by (A)(2),(A)(3), (A)(4), or (A)(5).

(1) General.

The Where branch circuits for pool-associated motors shall be installed in rigid metal conduit,intermediate metal conduit, rigid polyvinyl chloride conduit, reinforced thermosetting resin conduit, or TypeMC cable listed for the location. Other wiring methods and materials shall be permitted in specificlocations or applications as covered in this section. Any wiring method employed shall contain aninsulated copper equipment grounding conductor sized in accordance with are subject to physicaldamage and/or installed in wet, damp, or corrosive environments, that portion of the branch circuit shallbe installed in rigid metal conduit, intermediate metal conduit, rigid polyvinyl chloride conduit, reinforcedthermosetting resin conduit, or Type MC cable, suitable for the conditions subject to that location. Wiringmethods installed in these locations shall contain an insulated copper equipment grounding conductorsized in accordance with Table 250.122 but not smaller than 12 AWG.

Where installed in dry, noncorrosive environments, branch circuits shall comply with the generalrequirements in Chapter 3 .

(2) On or Within Buildings.

Where installed on or within buildings, electrical metallic tubing shall be permitted.

(2) Flexible Connections.

Where necessary to employ flexible connections at or adjacent to the motor, liquidtight flexible metal orliquidtight flexible nonmetallic conduit with approved listed and labeled fittings shall be permitted.

(3) One-Family Dwellings.

In the interior of dwelling units, or in the interior of accessory buildings associated with a dwelling unit,any of the wiring methods recognized in Chapter 3 of this Code that comply with the provisions ofthis section shall be permitted. Where run in a cable assembly, the equipment grounding conductor shallbe permitted to be uninsulated, but it shall be enclosed within the outer sheath of the cable assembly.

(3) Cord-and-Plug Connections.

Pool-associated motors shall be permitted to employ cord-and-plug connections. The flexible cord shallnot exceed 900 mm (3 ft) in length. The flexible cord shall include a copper equipment groundingconductor sized in accordance with 250.122 but not smaller than 12 AWG. The cord shall terminate in agrounding-type attachment plug.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The current restrictions in this section related to wiring methods seem to address concerns for twoissues; protection from physical damage, and protection from environmental conditions associatedwith wet, damp, and corrosive conditions associated with pools, spas, hot tubs, etc. The othersubdivisions seem to describe portions of those circuits installed in areas not likely to encounterthose conditions. This revision attempts to revise text in a way where the restricted wiring will onlyapply in areas where those harsh conditions are present and otherwise permit the requirements in


109 of 141 4/17/2015 2:48 PM

Chapter 3 to regulate the wiring for protected locations.

ResponseMessage:

Public Input No. 3443-NFPA 70-2014 [Sections 680.21(A)(1), 680.21(A)(2), 680.21(A)(3), 680.21(A...]

Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Cook, Donald R.

IAEI supports revisions included in FR 4855. However It doesn't appear that Terra addressed the re-numberingincluded in the revision. Text in (A) was not changed while previous items (A)(2) and (A)(3) were deleted. Firstsentence should be revised to read: "The wiring to a pool motor shall comply with (A)(1) unless modified by (A)(2)or (A)(3).


110 of 141 4/17/2015 2:48 PM

First Revision No. 4856-NFPA 70-2015 [ Section No. 680.22(A)(2) ]

(2) Circulation and Sanitation System, Location.

Receptacles that provide power for water-pump motors or for other loads directly related to the circulationand sanitation system shall be located at least 3.0 m (10 ft) from the inside walls of the pool, or not lessthan 1.83 m (6 ft) from the inside walls of the pool if they meet all of the following conditions: . Consist ofsingle These receptacles shall have GFCI protection Are and be of the grounding type.

(0) Consist of single receptacles

(0) Are of the grounding type

(0) Have GFCI protection




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Locking type receptacles were previously required to reduce the likelihood of receptacles intendedfor the sanitation system water pumps being used for other appliances, such as radios andtelevisions. Receptacles of this configuration were not considered necessary if the receptacle wasplaced away from the pool a sufficient distance (10 ft.) to keep these appliances outside the reach ofpersons in the pool.

Recent updates to this section removed the requirement for a locking configuration if the receptaclewas at least 6 ft. from the inside walls. This distance was considered sufficient based on the cordlengths of appliances likely to be used around the pool. Based on this analysis the existing textreferencing 10 ft. can be removed. The limitation for a single receptacle for the sanitation systempump is also not required based on the same rationale for the 6 ft. limitation. Also the GFCIreceptacle devices are usually in a duplex configuration.

This list format was no longer needed due to only two conditions being required, which have beencompiled into one sentence.

ResponseMessage:



Ballot Results


10 Eligible Voters

0 Not Returned


111 of 141 4/17/2015 2:48 PM

8 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Krepps, Rachel E.


Schapp, Ronald F.

Yasenchak, Randy J.


Jhonson, Don W.

The Circulation and Sanitation System Equipment Location should be defined. Suggest Equipment shall belocated not less than 1.83 m (6 ft) from the inside walls of the pool. The FR defines the receptacle location, thiswill permit the equipment using a 3-foot cord to be located within 3-feet of the pool wall.


Although the cord for the utilization equipment may only be 6ft in length the equipment could be placed at theedge of a pool within reach of someone inside the pool. The current 10ft requirement would keep the equipmentout of reach by a person in the pool.


112 of 141 4/17/2015 2:48 PM

First Revision No. 4857-NFPA 70-2015 [ New Section after 680.22(B)(6) ]

(7) Low-Voltage Gas-Fired Electronic Luminaires.

Listed low-voltage gas-fired electronically ignited luminaires and outdoor luminaire lighting applianceswith low-voltage ignitors that do not require grounding, that do not exceed the low-voltage contact limit,and that are supplied by listed transformers or power supplies that comply with 680.23(A)(2) shall bepermitted to be located less than 1.5 m (5 ft) from the inside walls of the pool. Metallic luminaires andoutdoor luminaire lighting appliances shall be bonded in accordance with the requirements in680.26(B) . Transformers or power supplies supplying these luminaires and outdoor lluminaire lightingappliances shall be installed in accordance with the requirements in 680.24 . Metallic gas piping shallbe bonded in accordance with the requirements in 250.104(B) and 680.26(B)(7) .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This is a clarification of current code language to eliminate confusion as to types of luminairescovered under this section. Some inspectors are interpreting the Code language to exclude and rejectlisted, electronically ignited gas-fired decorative luminaires that otherwise meet NEC requirements in680.22(B)(6) for low-voltage luminaires. The definition of “luminaire” in Article 100 does not specify thetype of light source, power source or fuel source, and therefore gas-fired luminaires are implicitlyincorporated in the definition, as are LED, incandescent, halogen, compact fluorescent, and othertechnologies not specifically called out but which are implicitly incorporated in the definition. Theconfusion and need for clarification has arisen with the conversion of gas luminaire technology awayfrom manual ignition toward the use of low-voltage electronic igniters, as has also occurred in ranges,hot water heaters, gas grills, etc., bringing formerly gas-only devices and appliances (which wereeither manually ignited or equipped with standing pilots) under the requirements of the NEC aspertains to the electrical control and low-voltage igniter equipment. The term “outdoor luminatedlighting appliances” is added to reflect that the listing for this type of gas-fired device utilizes this termand does not utilize the specific term “luminaire”.

ResponseMessage:

Public Input No. 530-NFPA 70-2014 [New Section after 680.22(B)(6)]

Ballot Results


10 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention


113 of 141 4/17/2015 2:48 PM

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


114 of 141 4/17/2015 2:48 PM


(3) GFCI Protection, Lamping, Relamping, and Servicing .

A ground-fault Ground-fault circuit interrupter circuit-interrupter protection for personnel shall be installedin the branch circuit supplying luminaires operating at more voltages greater than the low voltage low-voltage contact limit such that there is no shock hazard during relamping. The installation of theground-fault circuit interrupter shall be such that there is no shock hazard with any likely fault-conditioncombination that involves a person in a conductive path from any ungrounded part of the branch circuit orthe luminaire to ground .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The revisions clarify that the GFCI protection shall be protection for personnel. The addition of“servicing” will close the loophole around replacement of luminaires not technically “lamping” or“relamping”, or other types of lighting service. The intent is to get GFCI protection for personnel forall lights operating above the LVCL. The last sentence was deleted as this simply described thefunction of a properly installed GFCI.

ResponseMessage:


Ballot Results


10 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



115 of 141 4/17/2015 2:48 PM


Schapp, Ronald F.

Yasenchak, Randy J.


116 of 141 4/17/2015 2:48 PM

First Revision No. 4862-NFPA 70-2015 [ Section No. 680.23(F)(1) ]

(1) Wiring Methods.

Branch Where branch -circuit wiring on the supply side of enclosures and junction boxes connected toconduits run to wet-niche and no-niche luminaires, and the field wiring compartments of dry-nicheluminaires, underwater luminaires are subject to physical damage and/or are installed in wet, damp, orcorrosive environments, that portion of the branch circuit shall be installed using rigid metal conduit,intermediate metal conduit, liquidtight flexible nonmetallic conduit, rigid polyvinyl chloride conduit, orreinforced thermosetting resin conduit suitable for the location . Where installed on buildings, electricalmetallic tubing shall be permitted, and where installed within buildings, electrical nonmetallic tubing, TypeMC cable, electrical metallic tubing, or Type AC cable shall be permitted. In all cases, an insulated in dry,noncorrosive environments, branch circuits shall comply with the general requirements in Chapter 3 .Wiring methods installed in wet, damp, or corrosive environments shall contain an insulated copperequipment grounding conductor sized in accordance with Table 250.122, but not less than 12 AWG shallbe required.

Exception: Where connecting to transformers for pool lights, liquidtight flexible metal conduit shall bepermitted. The length shall not exceed 1.8 m (6 ft) for any one length or exceed 3.0 m (10 ft) in totallength used.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revised text requires restricted wiring methods only in areas where those harsh conditionsare present. Chapter 3 wiring methods are otherwise acceptable. This adds clarity andconsistency with other sections within 680.

ResponseMessage:

Public Input No. 3767-NFPA 70-2014 [Section No. 680.23(F)]

Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.


117 of 141 4/17/2015 2:48 PM

Cook, Donald R.


Hunter, Randal

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Jhonson, Don W.

The continuous "conductor" equipment ground has been a main stay for safety insuring a maintained equipmentground wire from equipment to service. I agree with the permission of Chapter 3 wiring methods in dry,noncorrosive environments where including a covered, insulated or bare equipment grounding conductor. AllowingChapter 3 wiring methods without the requirement of a separate conductor for equipment grounding fromequipment to service diminishes the safety of the installation.


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First Revision No. 4861-NFPA 70-2015 [ Section No. 680.23(F)(3) ]

(3) Conductors.

Conductors on the load side of a ground-fault circuit interrupter or of a transformer, used to comply withthe provisions of 680.23(A)(8), shall not occupy raceways, boxes, or enclosures containing otherconductors unless one of the following conditions applies:

(1) The other conductors are protected by ground-fault circuit interrupters.

(2) The other conductors are equipment grounding conductors and bonding jumpers as required per680.23(B)(2) (b) .

(3) The other conductors are supply conductors to a feed-through-type ground-fault circuit interrupter.

(4) Ground-fault circuit interrupters shall be permitted in a panelboard that contains circuits protected byother than ground-fault circuit interrupters.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This is simply a correlation item related to the changes in the 2011 NEC regarding the term“equipment grounding conductors”, however a unique requirement for pool luminaires alsorequires a bonding jumper to be installed on the load side, and as such needs to be noted.

ResponseMessage:

Public Input No. 623-NFPA 70-2014 [Section No. 680.23(F)(3)]

Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal


119 of 141 4/17/2015 2:48 PM

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Jhonson, Don W.

The FR needs to clarify (3)supply conductors to a feed-through-type ground-fault circuit interrupter. The non-GFCIprotected supply conductors should be limited to occupy only the enclosure for the feed-through-type ground-faultcircuit interrupter, not a common raceway. A recent inspected installation observed GFCI protected circuitconductors installed in a raceway with non-GFCI protected circuit conductors to a second feed-through-typeground-fault circuit interrupter location. The other conductors are supply conductors to a feed-through-typeground-fault circuit interrupter.


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First Revision No. 4863-NFPA 70-2015 [ Section No. 680.25(1) ]

(1) Feeders.

Feeders Where feeders are subject to physical damage and/or installed in wet, damp, or corrosiveenvironments, that portion of the feeder shall be installed in rigid metal conduit or , intermediate metalconduit. , The following wiring methods shall be permitted if not subject to physical damage: rigid polyvinylchloride conduit, or reinforced thermosetting resin conduit, suitable for the conditions. Where installed indry, noncorrosive environments, feeders shall comply with the general requirements in Chapter 3 . Wiringmethods installed in wet, damp, or corrosive environments shall contain an insulated copper equipmentgrounding conductor sized in accordance with Table 250.122 , but not less than 12 AWG shall berequired.

(0) Liquidtight flexible nonmetallic conduit

(0) Rigid polyvinyl chloride conduit

(0) Reinforced thermosetting resin conduit

(0) Electrical metallic tubing where installed on or within a building

(0) Electrical nonmetallic tubing where installed within a building

(0) Type MC cable where installed within a building and if not subject to corrosive environment




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revised text requires restricted wiring methods only in areas where those harsh conditions arepresent. Chapter 3 wiring methods are otherwise acceptable. This adds clarity and consistency withother sections within 680. Grounding provisions for feeders have been incorporated in this locationsince it has been removed from its previous location by FR 4864.

ResponseMessage:

Public Input No. 1744-NFPA 70-2014 [Section No. 680.25(1)]

Public Input No. 2539-NFPA 70-2014 [New Section after 680.25(1)]

Public Input No. 3234-NFPA 70-2014 [New Section after 680.25(1)]




Ballot Results


10 Eligible Voters

0 Not Returned


121 of 141 4/17/2015 2:48 PM

8 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.


Hunter, Randal

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Cook, Donald R.

IAEI supports revisions in FR 4863. However, based on the combination of actions in FR 4863 and 4864additional numbering and titling may be needed for clarity.


Jhonson, Don W.



122 of 141 4/17/2015 2:48 PM


(C) Grounding.

An equipment grounding conductor shall be installed with the feeder conductors between the groundingterminal of the pool equipment panelboard and the grounding terminal of the applicable serviceequipment or source of a separately derived system. For other than feeders to separate buildings thatdo not utilize an insulated equipment grounding conductor in accordance with 680.25(B)(2) , thisequipment grounding conductor shall be insulated.

(1) Size.

This conductor shall be sized in accordance with 250.122 but not smaller than 12 AWG. On separatelyderived systems, this conductor shall be sized in accordance with 250.30(A)(3) but not smaller than 8AWG.

(2) Separate Buildings.

A feeder to a separate building or structure shall be permitted to supply swimming pool equipmentbranch circuits, or feeders supplying swimming pool equipment branch circuits, if the groundingarrangements in the separate building meet the requirements in 250.32(B) .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

An associated FR for 680.25 (A) (1) incorporates the "special" grounding requirements related tophysical damage and those related to potential wet, damp, corrosive environments associated withpools, spas, and hot tub type equipment. Other text already covered in general rules of the NEChas been deleted since 90.3 already covers those issues.

ResponseMessage:

Public Input No. 269-NFPA 70-2014 [Section No. 680.25(B) [Excluding any Sub-Sections]]

Public Input No. 2544-NFPA 70-2014 [Section No. 680.25(B) [Excluding any Sub-Sections]]



Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention


123 of 141 4/17/2015 2:48 PM

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Jhonson, Don W.

The continuous "conductor" equipment ground has been a main stay for safety insuring a maintained equipmentground wire from equipment to service. Allowing wiring methods without the requirement of a separate conductorfor equipment grounding from equipment to service diminishes the safety of the installation.


124 of 141 4/17/2015 2:48 PM


(2) Perimeter Surfaces.

The perimeter surface to be bonded shall be considered to extend for 1 m (3 ft) horizontally beyond theinside walls of the pool and shall include unpaved surfaces, as well as poured concrete surfaces andother types of paving. Perimeter surfaces less than 1 m (3 ft) separated separated from the pool by apermanent wall or building 1.5 m (5 ft) in height or more shall require equipotential bonding only on thepool side of the permanent wall or building. Bonding to perimeter surfaces shall be provided as specifiedin 680.26(B)(2)(a) or (2)(b) and shall be attached to the pool reinforcing steel or copper conductor grid ata minimum of four (4) points uniformly spaced around the perimeter of the pool. For nonconductive poolshells, bonding at four points shall not be required.

(a) Structural Reinforcing Steel. Structural reinforcing steel shall be bonded in accordance with680.26(B)(1)(a).

(b) Alternate Means. Where structural reinforcing steel is not available or is encapsulated in anonconductive compound, a copper conductor(s) shall be utilized where the following requirementsare met:

(1) At least one minimum 8 AWG bare solid copper conductor shall be provided.

(2) The conductors shall follow the contour of the perimeter surface.

(3) Only listed splices shall be permitted.

(4) The required conductor shall be 450 mm to 600 mm (18 in. to 24 in.) from the inside walls of thepool.

(5) The required conductor shall be secured within or under the perimeter surface 100 mm to 150mm (4 in. to 6 in.) below the subgrade.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

This revision is intended to clarify that the perimeter surface is considered an area ratherthan a physical object.

ResponseMessage:


Ballot Results


10 Eligible Voters

0 Not Returned

10 Affirmative All


125 of 141 4/17/2015 2:48 PM



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


126 of 141 4/17/2015 2:48 PM


680.28 Gas-Fired Water Heater.

Circuits serving gas-fired swimming pool and spa water heaters operating at voltages above thelow-voltage contact limit shall be provided with ground-fault circuit-interrupter protection for personnel.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The existing Code text does not address the electric circuits of gas-fired pool heaters. Ground faultprotection for personnel is being extended to those installations also.

Ground fault protection for personnel is not being extended for electric water heater installations.Risk of electric shock is considered adequately mitigated through the use of grounding and thelisting installation requirement for the use of current collectors on the input and output. These haveproven reliable to prevent unacceptable levels of current in the pool in the event of corrosion of theimmersed heating elements.

ResponseMessage:


Ballot Results


10 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



127 of 141 4/17/2015 2:48 PM


Schapp, Ronald F.

Yasenchak, Randy J.


128 of 141 4/17/2015 2:48 PM


(2) Wiring Methods.

Rigid metal conduit of brass or other identified corrosion-resistant metal, liquidtight flexible nonmetallicconduit (LFNC-B ), rigid polyvinyl chloride conduit, or reinforced thermosetting resin conduit shall extendfrom the forming shell to a listed junction box or other enclosure as provided in 680.24. Where rigidpolyvinyl chloride conduit, reinforced thermosetting resin conduit, or liquidtight flexible nonmetallic conduitis used, an 8 AWG insulated solid or stranded copper bonding jumper shall be installed in this conduit.The bonding jumper shall be terminated in the forming shell and the junction box. The termination of the 8AWG bonding jumper in the forming shell shall be covered with, or encapsulated in, a listed pottingcompound to protect such connection from the possible deteriorating effect of pool water.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Current listing requirements have created the need for this change. All three Types of LFNC arerequired to meet the same physical performance testing, such as cold temperature impact, verticalflame, tension, deformation, etc, per UL1660. Each Type of LFNC is equivalent and are acceptablewiring methods for Underwater Audio Equipment.


Ballot Results


10 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.




129 of 141 4/17/2015 2:48 PM

Schapp, Ronald F.

Yasenchak, Randy J.


130 of 141 4/17/2015 2:48 PM


(B) Electrically Operated Pool Covers.

(1) Motors and Controllers.

The electric motors, controllers, and wiring shall be located not less than 1.5 m (5 ft) from the inside wallof the pool unless separated from the pool by a wall, cover, or other permanent barrier. Electric motorsinstalled below grade level shall be of the totally enclosed type. The device that controls the operation ofthe motor for an electrically operated pool cover shall be located such that the operator has full view of thepool.

Informational Note No. 1: For cabinets installed in damp and wet locations, see 312.2 .

Informational Note No. 2: For switches or circuit breakers installed in wet locations, see 404.4 .

Informational Note No. 3: For protection against liquids, see 430.11 .

Exception: Motors that are part of listed and labeled systems with ratings not exceeding the low-voltagecontact limit that are supplied by listed and labeled transformers or power supplies that comply with680.23(A)(2) shall be permitted to be located less than 1.5 m (5 ft) from the inside walls of the pool.

(2) Protection.

The electric motor and controller shall be connected to a branch circuit protected by a ground-fault circuitinterrupter.

Exception: Motors that are part of listed and labeled systems with ratings not exceeding the low-voltagecontact limit that are supplied by listed and labeled transformers or power supplies that comply with680.23(A)(2) .




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The existing text of Section 680.27(B) assumes the electrically operated pool cover utilizes a motorrunning at line voltage. New designs are becoming available that are powered by swimming pooltransformers and operate at voltages not exceeding the low-voltage contact limit. Sections680.27(B)(1) and 680.27(B)(2) should be amended to allow for such designs. The proposed text isessentially identical to that for low-voltage underwater luminaires not requiring grounding in680.22(B)(6) as these low-voltage pool cover motors present the same risk of electric shock.

ResponseMessage:

Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



131 of 141 4/17/2015 2:48 PM


0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Yasenchak, Randy J.


Schapp, Ronald F.

680.27(B) Exception. Requiring "labeling" in addition to "listing" is not appropriate. Refer to negative comment toFR 4803.


132 of 141 4/17/2015 2:48 PM


680.41 Emergency Switch for Spas and Hot Tubs.

A clearly labeled emergency shutoff or control switch for the purpose of stopping the motor(s) thatprovides power to the recirculation system and jet system shall be installed at a point readily accessible tothe users and not less than 1.5 m (5 ft) away, adjacent to, and within sight of the spa or hot tub. Thisrequirement shall not apply to single one -family dwellings.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Changing the word "single"-family to "one"-family will provide a consistent use of the definedterm in Article 100

ResponseMessage:


Ballot Results


10 Eligible Voters

0 Not Returned

10 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


133 of 141 4/17/2015 2:48 PM


(C) Interior Wiring to Outdoor Installations.

In the interior of a dwelling unit or in the interior of another building or structure associated with a dwellingunit, any of the wiring methods recognized or permitted in Chapter 3 of this Codethat contains a copperequipment grounding conductor that is insulated or enclosed within the outer sheath of the wiring methodand not smaller than 12 AWG shall be permitted to be used for the connection to motor, disconnectingmeans and the motor, heating, and control loads that are part of a self-contained spa or hot tub or apackaged spa or hot tub equipment assembly. Wiring to an underwater luminaire shall comply with 680.23or 680.33.

Informational Note: See 680.25 for feeders.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

There has been some misunderstanding regarding the use of NM cable between the disconnectingmeans and service equipment for residential hot tubs. This also adds consistency to other changessubmitted within article 680 regarding the use of Chapter 3 wiring methods. The addition of theinformational note will make it clear this section applies to branch circuits, not feeders.

ResponseMessage:


Public Input No. 3905-NFPA 70-2014 [New Section after 680.42(C)]

Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Cook, Donald R.


Hunter, Randal

Krepps, Rachel E.


134 of 141 4/17/2015 2:48 PM



Schapp, Ronald F.

Yasenchak, Randy J.


Jhonson, Don W.



135 of 141 4/17/2015 2:48 PM


Part VIII. Electrically Powered Pool Lifts

680.80 General.

Electrically powered pool lifts as defined in 680.2 shall comply with Part VIII of this article. They shallnot be required to comply with other parts of this article.

680.81 Equipment Approval.

Lifts shall be listed and labeled.

Exception No. 1: Lifts where the battery is removed for charging at another location and the battery israted less than or equal to the low-voltage contact limit shall not be required to be listed or labeled.

Exception No. 2: Solar-operated or -recharged lifts where the solar panel is attached to the lift andthe battery is rated less than or equal to 24 volts shall not be required to be listed or labeled.

Exception No. 3: Lifts that are supplied from a source not exceeding the low-voltage contact limit andsupplied by listed and labeled transformers or power supplies that comply with 680.23(A)(2) shallnot be required to be listed or labeled.

680.82 Protection.

Pool lifts connected to premises wiring and operated above the low-voltage contact limit shall beprovided with GFCI protection for personnel.

680.83 Bonding.

Lifts shall be bonded in accordance with 680.26(B)(5) and (B)(7).

680.84 Switching Devices.

Switches and switching devices that are operated above the low-voltage contact limit shall comply with680.22(C) .

680.85 Nameplate Marking.

Electrically powered pool lifts shall be provided with a nameplate giving the identifying name and modeland rating in volts and amperes, or in volts and watts. If the lift is to be used on a specific frequency orfrequencies, it shall be so marked. Battery-powered pool lifts shall indicate the type reference of thebattery or battery pack to be used. Batteries and battery packs shall be provided with a battery typereference and voltage rating.

Exception: Nameplate ratings for battery-powered pool lifts shall only need to provide a rating in voltsin addition to the identifying name and model.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

Installation of electrically powered pool lifts occur across the country. This proposed new partto Article 680 provides requirements for these units.

ResponseMessage:

Public Input No. 4024-NFPA 70-2014 [New Part after VII.]

Ballot Results


136 of 141 4/17/2015 2:48 PM


10 Eligible Voters

0 Not Returned

8 Affirmative All



0 Abstention

Affirmative All

Cook, Donald R.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Yasenchak, Randy J.


Blewitt, Thomas V.

Similar to 680.26(B)(5) and 680.26(B)(7), this new section specifies (in 680.83) what is required to be bonded. Itwould therefore be more appropriate for the “in accordance” reference to be to the more general 680.26(B)instead of to 680.26(B)(5) and (B)(7).


Schapp, Ronald F.

680.81 Exceptions 1), 2) and 3. Requiring "labeling" in addition to "listing" is not appropriate. Refer to negativecomment to FR 4803.


137 of 141 4/17/2015 2:48 PM


680.74 Bonding.

Both metal piping systems and grounded metal parts in contact with the circulating water shall be bondedtogether using a solid copper bonding jumper, insulated, covered, or bare, not smaller than 8 AWG. Thebonding jumper shall be connected to the terminal on the circulating pump motor that is intended for thispurpose. The bonding jumper shall not be required to be connected to a double insulated circulatingpump motor. The 8 AWG or larger solid copper bonding jumper shall be required for equipotential bondingin the area of the hydromassage bathtub and shall not be required to be extended or attached to anyremote panelboard, service equipment, or any electrode. The 8 AWG or larger solid copper bondingjumper shall be long enough to terminate on a replacement non-double-insulated pump motor and shallbe terminated to the equipment grounding conductor of the branch circuit of the motor when a double-insulated circulating pump motor is used.

(A) General.

The following parts shall be bonded together:

(1) All metal fittings within or attached to the tub structure that are in contact with the circulating water

(2) Metal parts of electrical equipment associated with the tub water circulating system, includingpump and blower motors

(3) Metal-sheathed cables and raceways and metal piping that are within 1.5 m (5 ft) of the insidewalls of the tub and not separated from the tub by a permanent barrier

(4) All exposed metal surfaces that are within 1.5 m (5 ft) of the inside walls of the tub and notseparated from the tub area by a permanent barrier

(5) Electrical devices and controls that are not associated with the hydromassage tubs and that arelocated within 1.5 m (5 ft) from such units

Exception No. 1: Small conductive surfaces not likely to become energized, such as air and waterjets, supply valve assemblies, and drain fittings not connected to metallic piping, and towel bars,mirror frames, and similar nonelectrical equipment not connected to metal framing shall not berequired to be bonded.

Exception No. 2: Double-insulated motors and blowers shall not be bonded.

(B)

Both metal piping systems and grounded metal parts in contact with the circulating water shall be Allmetal parts required to be bonded by this section shall be bonded together using a solid copper bondingjumper, insulated, covered, or bare, not smaller than 8 AWG. The bonding jumper jumper(s) shall beconnected to the terminal on the circulating pump motor that is intended for this purpose. The bondingjumper shall not be required to be connected to a double insulated circulating pump motor. The 8 AWG orlarger solid copper bonding jumper shall be required for equipotential bonding in the area of thehydromassage bathtub and shall not be required to be extended or attached to any remote panelboard,service equipment, or any electrode. The 8 AWG or larger solid copper In all installations a bondingjumper shall be long enough to terminate on a replacement non-double-insulated pump or blower motorshall be provided and shall be terminated to the equipment grounding conductor of the branch circuit ofthe motor when a double-insulated circulating pump or blower motor is used.




Street Address:

City:

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Committee Statement

CommitteeStatement:

The revised text clarifies the intent of the requirement for bonding in the area aroundhydromassage bathtubs.

Response Message:



Ballot Results


10 Eligible Voters

0 Not Returned

9 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.


Hunter, Randal

Jhonson, Don W.

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Cook, Donald R.

After review of proposed text, IAEI does not believe revised text clarifies the requirement for bonding aroundhydomassage bathtubs. Revision expands bonding requirement to devices and controls within 1.5 m (5 ft) with nosubstantiation for that change. Revision expands bonding requirement to exposed metal surfaces within 1.5 m (5ft) with no substantiation. While current intent is not perfectly clear, proposed text does not help.


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682.15 Ground-Fault Circuit-Interrupter (GFCI) Protection.

Fifteen- and 20-ampere single-phase, 125-volt through 250-volt receptacles installed outdoors and in oron floating buildings or structures within the electrical datum plane area that are used for storage,maintenance, or repair where portable electric hand tools, electrical diagnostic equipment, or portablelighting equipment are to be used shall be provided with GFCI protection for personnel . The GFCIprotection device shall be located not less than 300 mm (12 in.) above the established electrical datumplane.




Street Address:

City:

State:

Zip:


Committee Statement

CommitteeStatement:

The removed text will add clarity to the requirement for GFCI protection for personnel under allsituations encountered within the electrical datum plane area.

ResponseMessage:


Ballot Results


9 Eligible Voters

0 Not Returned

7 Affirmative All



0 Abstention

Affirmative All

Blewitt, Thomas V.

Hunter, Randal

Krepps, Rachel E.



Schapp, Ronald F.

Yasenchak, Randy J.


Cook, Donald R.


140 of 141 4/17/2015 2:48 PM

While proposed text in FR 4871 in some ways is an improvement, additional improvements are needed. Currentand proposed text includes a requirement for GFCI protection for 15- and 20-ampere, single phase, 125-voltreceptacles. That text is redundant since 210.8 requires all outdoor receptacles of that configuration to be GFCIprotected. Current and proposed text includes GFCI protection for receptacles in floating buildings. Thoserequirements are not correlated with the requirements in Article 553 for Floating Buildings. While proposed textdoes provide improvement, clarity is not achieved.

Jhonson, Don W.

I agree to the requirement for GFCI protection for personnel under all situations encountered within the electricaldatum plane area. With the single and 3-phase available GFCI protection devices on the market today I suggest:Outlets rated 250 volts or less and 60 amperes or less, single- or 3-phase, installed outdoors and in or on floatingbuildings or structures within the electrical datum plane area shall be provided with GFCI protection for personnel.


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Documents

National Fire Protection Association Report Kimberly Shea, Project Administrator Date: April 17, 2015 Subject: NEC First Draft TC FINAL Ballot Results (A2016) According to the final